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Koisuru Boukun  
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Being in love with your straight sempai isn't easy, but being in love with your straight, homophobic, and (to top it off) tyrannical sempai can be hell! And that's something Tetsuhiro Morinaga can relate to... especially now that he's had a taste of the forbidden fruit!

Features the same homophobic brother from Challengers, but this time as the main character!

Contains an extra story called Bokutachi no Shippai in v.5 featuring Masaki and Morinaga's big brother Kunihiro.

Takanaga Hinako confirmed on her Twitter account that her manga Koisuru Boukun will resume serialization in the February's 2015 issue of Kaiohsha's Gush magazine.


Related Series

Associated Names
사랑하는 폭군
Bokutachi no Shippai
Koi Suru Boukun
T-Love (French)
The Tyrant Falls In Love
The Tyrant Who Fall in Love
The Tyrant Who Falls in Love
Verliebter Tyrann

Groups Scanlating
Biblo Eros
Canis Major Scanlations
Hinako Takanaga Fan Community
Iridescent Scans

Latest Release(s)
v.11 c.5 by kudouusagi about 1 month ago
v.11 c.4 by kudouusagi 2 months ago
v.11 c.3 by kudouusagi 3 months ago
Search for all releases of this series

Status in Country of Origin
10 Volumes (Ongoing)

Completely Scanlated?

Anime Start/End Chapter
Starts at Vol 1, Chap 1
Ends at Vol 1, Chap 5

User Reviews

2 topics, 12 posts
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User Rating
Average: 8.6 / 10.0 (1001 votes)
Bayesian Average: 8.53 / 10.0
 52% (516 votes)
 18% (176 votes)
 13% (131 votes)
 5% (51 votes)
 3% (33 votes)
 2% (21 votes)
 1% (11 votes)
 1% (9 votes)
 1% (8 votes)
 4% (45 votes)

Last Updated
May 10th 2017, 3:48am PST



Category Recommendations





Original Publisher

Serialized In (magazine)
Gush (Kaiousha)

Licensed (in English)

English Publisher
June (9 Volumes - Ongoing)

Activity Stats (vs. other series)
Weekly Pos #363 increased(+40)
Monthly Pos #463 increased(+22)
3 Month Pos #496 decreased(-159)
6 Month Pos #355 decreased(-34)
Year Pos #350 decreased(-78)

List Stats
On 2164 reading lists
On 483 wish lists
On 102 unfinished lists
On 620 custom lists

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Forum Posts
Koisuru Boukun continuation over 2 years ago
Whats up with the releases? over 8 years ago

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User Comments [ Order by time added ]

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Undeniably the Best Yaoi I Have Ever Read   
Rating: 10.0 / 10.0
by swarlz813
July 26th, 2010, 8:11pm
Many yaoi manga I have read are stale, repetitive, and forgettable. Many have crybaby, girly ukes and manipulative, personality-void semes. This is not like that at all.

One thing that I love about this manga is that Souichi and Morinaga are friends. The relationship between them isn't weak or shallow, but the two have known one another for years and have formed a genuine bond between them. I don't think I've ever seen this kind of relationship yaoi before. They aren't only lusting after each other, but can sit down and talk to one another. You may not even notice this, but that's only because it feels so natural and so right. At the same time, though, it's clear that they're not just friends either; there is a tension, one that is first one-sided, but develops gradually into something mutual.

For another thing, Souichi and Morinaga are two characters that readers can care about individually and as a pair. At the start of Tyrant, the two have known each other for five years, and have a pretty strong friendship. Their romantic relationship, however, starts out rocky. At first, Morinaga's feelings appear entirely one-sided, and Souichi denies his love with all his might. It becomes clear soon enough, though, that his feelings towards Morinaga aren't merely that of friend or of sempai-kouhei (upper and underclassman). When Souichi faces the threat of losing Morinaga, he makes a choice that a mere 'friend' would never do. From this point onwards, their relationship grows, and so do they.
The two of them are flawed; Morinaga is a nice guy, but he's still a guy. Meaning, he's horny. ALOT. Souichi is a really sweet person deep down, but he is also incredible stubborn and has the tendency to express his anger with his fists (and and his feet and his knees and....) Although the reader may disagree with them on occasions, this is what makes them real, memorable, and lovable. As the story progresses, Morinaga tries learning restraint, realizing that Souichi's feelings on matters like sex must be considered to maintain a trusting relationship with him. At the same time, Souichi must come to terms with his own romantic feelings and desires, even though they are towards another man.

Something else I really like about this manga is that each sex scene isn't the same as the last, and each has it's own importance in furthering the plot. Every time they do it, something changes in their relationship, some times more so than others. Also, every time has tension building up to it, to the point that you want it to happen. There's also something romantic every time they do it; a feeling that these two people love each other, not just lust for each other. It's never just thrown in or shallow sex.

I also wanted to address something I've seen some people complain about for this manga; when Morinaga forcefully had sex with Souichi for their first time. This is something I had trouble getting past at first, as it is a plot tool that is overused (and inappropriately so) in many yaoi manga. However, the next-morning reaction, as well as the turmoil about it for the rest of the first volume I believe dealt with the situation accordingly. I absolutely hate when the uke, immediately after the act, accepts it because they 'actually loved the seme all along' or something. Souichi's reaction is... more appropriate - for the situation, his character, and the mood of the story as a whole.

I could go on, but I'll stop myself. You really can''t understand jsut how good this manga is until you read it. And don't stop early on, because what's so great about this manga is how the relationship between Souichi and Morinaga develops over time, until the point where you can't get enough of them.

On a side note, the prequel, "Challengers," can be read before or after reading Tyrant. It focuses on Souichi's brother and his lover, and in my opinion, isn't as good. Still, you get some backstory for Souichi and Morinaga here and there, so it's definitely worth checking out - it shows how they met and some things that happened before this story's start.
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Rating: N/A
by SugarB
July 7th, 2009, 2:55am
Tyrant was the second Yaoi I ever really paid attention to. I used to pick up yaoi books and flip through them for the pretty pictures, but one day I was surfing a website called, and came across their article on Tyrant. After reading their explanation of the manga, I was already hooked. The idea of role-reversal and the fact that Tatsumi was the biggest homophobe in existence just seemed so appealing. So, I found a download, and began to read.

Even though I had never read Challengers at the time, I've read it now, it wasn't hard to follow. She did a good job of making it a separate story, and anything that needed and could get an explanation got one.

I've noticed people here mentioned a lack of character and plot development. Throughout the volumes I have been able to get scanlations or page summaries for, I'd like to say that they're wrong in my opinion. Taking in mind the characters themselves, no, this plot would not move into a 'perfect relationship' in three books. Tatsumi is the kind of person who would purposefully drag out an awkward relationship with Morinaga because he can't stand the thought that he might be a homosexual. He has a very immature and close-minded view about the whole situation. So, while their relationship and plot development may be slower than normal yaoi manga's, there are little things along that way that show things are either improving or failing in one way or another along the way. The author doesn't shove them in your face or put large, blinking signs at them. You have to look into their dialouges and such in order to find them. I find this more realistic than most yaoi, because in real life most people never just out and say things.

One thing I find VERY appealing about this manga is that it's NOT every other yaoi out there. I have read my fair share of yaoi, and I have never found one as different or great as this. Tatsumi is not just suddenly in love with Morinaga after being, essentially, raped by him, but he also doesn't wish his horrible bloody death for the rest of his life. Sure, he wishes it at SOME point, but that just adds to the reason why this book is so great. Whenever I get tired of the conventional 'girly', 'easily influenced' and 'fragile' Uke (which is a lot. it's like reading bad shojo stereotypes), I turn back to this series. It's not everyday you find a series where the Uke is a violent tyrant!

It's very easy to feel for Morinaga, which I find great because it emotionally connects you to a character. You can watch how Morinaga slowly encourages Tatsumi to more or less stop running from his emotions, and in the meantime gets beaten up or yelled at for doing just that. It's a harsh thing to be involved in, and I believe it's pulled off beautifully. Tatsumi is sometimes violent towards Morinaga, true, but it's not to the point where he just beats on him because of who he is. He has to be provoked (usually with the truth...), and even then it's usually just a punch or a death threat.

This story is also riddled with hott sex scenes, and very hilarious moments. (Either at the hands of Tatsumi, or some stupid misunderstandings) The art and anatomy is PERFECT; I could stare at it all day.Some of the sex may seem a little random, but each time it happens something changes a little in their relationship. It's not usually very easy to see, but sometimes it's more prominent that others.

I HIGHLY recommend this manga to ANY fan of yaoi. The plot keeps you hooked to make you want to see when everything might change a little for the better, and the characters are easy to read and understand. At Vol.5, I do not believe Tatsumi is anywhere near directly telling Morinaga he loves him, and the frustration to finally hear it keeps it completely enticing.

If you only enjoy very fast mangas that include the love-confessions in like, the 3rd chapter, I would NOT recommend this manga.
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I don't get the reason for so much hate...   
Rating: 10.0 / 10.0
by Inulun
June 23rd, 2012, 1:30am
I'll say it in a few words. If Yamane Ayano's serie Finder is such a beloved one and it's all about rape (without funny stuff or an actual plot) how can peolpe say things like this one is horrible? This manga is simple, funny, cute and sexy. Do Morinaga rapes Souichi? Well, if you're raping someone you don't prepare them and try them to feel good. But if you want to consider it as raping and Morinaga a serial rapist (WHAT THE BLOODY F*CK?), ok go ahead, but you'll have to admit that it was only one time. Blackmail? HECK NO. How can you blackmail ANYBODY with "I'll go away if you don't do it with me" If it were me I would just laughed at him and kicked him 'till dead...
But well. YOU that you're interested in reading this beautiful manga, do it, it's great. I'm a comedy lover, I know what I say. If you're looking for some really realistic or melodramatic stuff this isn't for you, but if you're on the search of a good, funny, sexy and with-a-good-plot manga this is a MUST.

PS: The comment below mine... I have read the mangas she recommends...they're average, if you want quality manga don't read them, they're good for just...spending time reading a not-bad-manga but nothing memorable. Do you want good comedy? Read Natsume Isaku, Naono Bohra (hehehe, some of her works are kind of bizarre...but they're fun) Tomoe Fumi, Nekota Yonezou, Abe Akane, Madarame Hiro, even Nakamura Shungiku, Honto Yajuu etc, they are all great mangakas and mangas. Do you want drama? Yoneda Kou, Hidaka Shoko, Yugi Yamada, Sakuraga Mei, UnderGround Hotel, Totally Captivated,Kyuuso wa Cheese no Yume o Miru, Haru wo Daite Ita blablabla.

... Last updated on June 23rd, 2012, 9:45am
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Love it or hate it   
Rating: 8.5 / 10.0
by Mochi__x
August 2nd, 2012, 12:45pm
Well I love this! For me the only thing that annoyed me was Souichi's constant denial, it dragged out a bit too long. But there was quite a bit of humour and a lot of cute moments too which kept me interested XD Though after reading everyone else's reviews I can see it's quite controversial, so it all depends on your own personal tastes really.

I do understand why some people have issues with this because of the non-con and blackmail, though I think it handles the rape much better than a lot of BL. Both people involved react the right way afterwards (Morinaga is deeply regretful and Souichi is furious). As for the blackmail... well it seemed clear to me a few chapters in that it was just an excuse on Souichi's part. Morinaga even said he didn't want him to feel as though he was being emotionally blackmailed, but Souichi still wanted to use "blackmail" as an excuse as he was having trouble coming to terms with his feelings. After all, a homophobe falling in love with someone of the same sex is obviously going to be hard to accept! Besides if you're raped by your closest friend you don't beg them to stay and agree to sleep with them regularly just to keep them in your life. For someone as strong and violent as Souichi, if he didn't want it then he wouldn't have accepted him all those times, no matter how "special" Morinaga was to him. So the way I see it Souichi just needed to rely on using "blackmail" as his escape route really, as he was so deep in denial. Also after the initial rape Morinaga does do the right thing by attempting to cut himself out of Souichi's life as requested, but it was Souichi who stopped him. So as he willingly did that, and willingly offered his body I don't see that as blackmail or rape as he chose to do it (Admittedly their first time definitely was rape, then it moves on to consensual - with some denial mixed in. In my opinion.)

So this really depends on how you view it. Though I do think you should read the entire manga before forming an opinion either way, as both the issues are properly addressed later. (Vol 3 ch 4 is a particularly vital chapter.)

Ultimately it's your choice if you like this or not :]

... Last updated on November 17th, 2012, 11:00am
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Well this manga remind me of my college affair XD   
Rating: N/A
by sembadra
March 23rd, 2014, 7:03pm
Firstly first this is my very first time to give a comment here since i usually a kind of passive reader here?hehe and please please excuse my english or grammar mistake cause my english is not that good, sorry. But why i brave myself despite my bad english want to give a comment here because i kind of experienced this kind of relationship by myself. Well not to the point until sex scene though.

So i was in my college when i fell in love with my friend who is same sex gender. And i am straight. She is too. But i dont know how this feeling develop between us. its just i fall in love with her. she is kind of manly or butchy-in lesbian term (?) and maybe i kind of longing for someone that can take care of me and give a manly aura around them. I had a boyfriend before but he is not that manly as her for god sake lol. Even my friend's boyfi also said that she is like a boy and manly. So thats maybe i fall in love with her. But like i said before im straight and i think that feeling for her is so wrong for me. It just not right. We are kind of know each other feeling. She even said you love me/like me right? But i prefer to not answer it and take that as a joke. But God knows how my heart gonna explode at that time and how awkward the situation.

It was her who always have a courage to push this relationship a little higher, like we often go out together at night or in satnite, and at that time she even had a boy that like her and hit on her and he asked her to go out at saturday night but she turned his offered down and asked me instead to go out with her spending the night together in the lake in the city. She always said sweet things to me, like i like you you know, or dont do that kind stuff or i will fall in love with you even deeper from now, and she always take care of me, carresed my hair, pat my hair, hold my hand, that kind of couple things. And my heart sure go crazy with that. When she always sweet to me, in the other hand i always moody with her. Like this day i really want to see her, miss her, longing for her touch, but in the other day i kind of hate her for doing that, hate her for this kind relationship between us, hate this feeling for her. I wonder if thats like Souichi's feeling here haha

Im so moody, and in the end it always felt so wrong for me, this is not right, i felt disgust with me, us. And fyi i really dont mind or offended with gay people, its their right their bussines so im really fine with that. I even have a gay friend and perfectly fine with that, and somehow i find that they are interesting in a good meaning here. But maybe because im totally straight so that i found this relationship between us is disgusting. And now we both have graduated for college, she found a job back in her hometown and she still message or call me saying i miss you, dont you miss me, or lets go out together this weekend, that kind of stuff. But i always deny this feeling. I answer her once a while, but i cant lie to my heart that i still miss her and longing for her.

And with that, i kind of understand how Shouichi's feeling in this manga. Well maybe in my point of view myself haha, but seriously when i read this manga it really remind me of my forbidden feeling when i was in a college haha. Wew i should give a comment about this manga and here i am telling everyone about my story instead, sorry people..but i cant help it cause it feels like this manga really portrayed how i felt back then. Again sorry for my bad english ><

... Last updated on March 23rd, 2014, 7:16pm
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A favorite   
Rating: 10.0 / 10.0
by Twayblade
April 14th, 2012, 5:00am
I really like this series, though I can appreciate it's not for everyone. A lot of people can't get past the premise, and would consider most (if not all) of the sex scenes in the manga rape. Since I don't think yaoi is supposed to be extremely realistic and serious, I didn't mind. In real life Morinaga and Tatsumi might be considered scary, unpleasant people, but this is fiction. If you want realistic, go read Sakura Gari. If you think a love story between a neurotic, abusive, homophobic closet case and an adorable serial rapist sounds like it could be interesting, this is the right manga for you.

As for the rest, the art is good to begin with, and it only gets better as it goes on. The pace is also good, it doesn't drag or get suddenly weird later on. The story sort of sucks you in and it doesn't feel repetitive despite the fact that character development is really slow. The ending did feel a little rushed to me, but satisfying nonetheless.

I wish there were more long, quality-consistent yaoi manga out there. This one gets an enthusiastic 10 from me.
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simply the best   
Rating: N/A
by comics
November 5th, 2008, 12:34pm
To tell the truth, I didn't have much interest in the mangaka's works, so I didnot have any expectation when I picked up the manga. The first chapter annoyed me, I thought it's gonna be a 'love at first rape' type of manga, so I dropped it. Some time later, out of boredom, I started reading it again, cuz it was at volume 5 and I thought it would keep me busy for quite some time. And this time when I got past chapter 1, the whole relationship development really amazed me, the story was cute, the couple was unique, their characteristics and interaction just made me lol. More than that, their story just took me on an emotion-rollercoaster, I laughed and cried with them. In short, a must-read in my opinion. You don't even need to like the other works of the mangaka to like this one, I think this one is the best one by her so far ^^
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Hands-down, one of my favourites.   
Rating: 10.0 / 10.0
by saiedafoo
January 1st, 2013, 8:34pm
I can understand why someone would have an issue with this manga but if you pay attention to the characters and situations you'll realize that Souichi's later feelings weren't a product of Stockholm syndrome or anything of the like. I think we can all agree that the first sexual encounter IS rape and can only be classified as rape but Souichi was the one who sought after Morinaga after the initial encounter. It's unfair to say this manga is "the worst thing that ever happened to BL", or is "garbage" solely because you can't look past the premise. I'm an avid BL reader, and a manga reader in general and this is hands down one of my favourites. Though Souichi's denial can get rather tiresome at time it's only because I just wanted to see them be fat and merry (so to speak) asap. The characters are well developed and the story line is both humorous and refreshing. The characters and their antics grow on you and you can't help but root for their well being as the story progresses. I feel that the best part of this manga is that it takes on a side of rape that isn't really portrayed by various forms of literature. While you may think it's absurd for someone to be taken advantage of and continue to be around the perpetrator, let alone continue to maintain a sexual relationship with them, it happens. There are always two parts to a scenario so it's rather silly to chastise the story solely because it doesn't follow the standard reaction. I don't cosign for sexual abuse, nor do I deem it appropriate it any way seeing as how I've been through it several times yet I feel like I'm the least offended compared to a lot of other reviewers.

... Last updated on January 1st, 2013, 8:35pm
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Wonderful! ♥   
Rating: 10.0 / 10.0
by streetwalker
February 28th, 2012, 8:46pm
I don't get all the fuss about non-con regarding this manga. I'd say whoever seriously thinks the whole series is some rape fantasy hasn't really read it. The first time it happened was definitely rape but only the first time and even that wasn't planned or anything. It wasn't graphic, it wasn't cruel so as rape goes this was pretty tame.

When you look at the story more closely, all the pieces click. The "blackmail" is basically Morinaga saying he'll leave if Souichi can't give him what he wants from their relationship. Hardly criminal, right? If Morinaga really was sexually abusing him, wouldn't Souichi want him gone? The only reason it's even labelled as blackmail is because Souichi needs an excuse for giving in. And the way I see it, Souchi doesn't refuse the sex because he doesn't want it, but rather because he doesn't want to want it, and there's a big difference... He just doesn't want to be a homo and this manga makes great use of the whole denial trope. I was actually more shocked by Souichi's violent outbursts than Morinaga's sexual behavior.

As for the rest, well the characters are all wonderful. Morinaga is super sweet, sympathetic and easy to relate to. There's also great character development especially when it comes to Souichi and the couple growth is truly touching. For such a funny manga this is very deep. The art is great and the sex scenes are some of the most sensual you'll ever read...

Highly recommend! ♥ And if you decide to read it, don't merely skim through it or you might just miss the whole point...
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People..This is one of the best series EVER!!!!   
Rating: 10.0 / 10.0
by saveadog
December 15th, 2014, 5:28pm
A must read!!! Trust me, lol.

One of the best EVER series - hotness in combination with humour. Tatsumi, the more hottie of the two main characters was so bang-able. He was beauty reincarnated that seriously no other manga babes can compare. What does he have going for him? Um,… only the best face and body that’s ever existed in yaoi manga. There is no better face or slender body. Sorry, there’s not. And those hot damn glasses….Ugh. THUD! I so have a kink for guys who are half blind. Tatsumi was so fragile, so vulnerable, but yet so fierce. Takanaga did wonder with this character - making him so three dimensional.

I liked that there were layers and depth to Tatsumi's emotions from confusion, anger, fear, anxiety, and finally love. Morinaga was wrong by forcing sex on Tatsumi, but then Tatsumi forgave him. That spoke volume that deep down he loved Mori. Tatsumi then went on to let Morinaga "black-mailed" him which led Tatsumi coming to term with his sexuality.

I also loved that Tatsumi was no damsel in distress even though his beauty made him seemed so fragile. Tatsumi struggled, was confused, but he did it all on his own term and his own pace so bravo Takanaga Hinako for making him so alive. I'm keeping toes and fingers crossed for more of this fantastic series. MUST READ!
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