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Renai Houteishiki  
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The one-year-younger cry-baby and childhood friend, Kanade, suddenly took Meguru’s first kiss! Though he's grown taller a bit recently, and the girls made a big fuss and called him “the piano prince”, I will not be tricked. He’s a pervert who steals another guy’s lips! With additional pages, the perfect version is now on sale. ♥

The first chapter was originally released as chapter 4 in volume 2 of Not Ready!? Sensei.


Related Series

Associated Names
Love Equation (KODAKA Kazuma)
Ren'ai Houteishiki
Ren-ai Houteishiki
Уравнение любви

Groups Scanlating

Latest Release(s)
v.2 c.12 (end) by Dangerous Pleasure over 9 years ago
v.2 c.11 by Dangerous Pleasure over 9 years ago
v.2 c.10 by Dangerous Pleasure over 9 years ago
Search for all releases of this series

Status in Country of Origin
3 Volumes (Complete)

Completely Scanlated?

Anime Start/End Chapter

User Reviews


User Rating
Average: 8.4 / 10.0 (201 votes)
Bayesian Average: 8.14 / 10.0
 30% (60 votes)
 18% (37 votes)
 26% (53 votes)
 13% (27 votes)
 7% (14 votes)
 3% (6 votes)
 1% (2 votes)
 0% (1 votes)
 0% (0 votes)
 0% (1 votes)

Last Updated
March 18th 2018, 2:04pm PST



Category Recommendations





Original Publisher

Serialized In (magazine)
b-Boy Phoenix (Libre Shuppan)
Be x Boy Gold (Libre Shuppan)
Magazine Be x Boy (Libre Shuppan)

Licensed (in English)

English Publisher

Activity Stats (vs. other series)
Weekly Pos #436 increased(+228)
Monthly Pos #1337 decreased(-23)
3 Month Pos #1837 increased(+754)
6 Month Pos #3559 increased(+487)
Year Pos #4925 increased(+642)

List Stats
On 198 reading lists
On 163 wish lists
On 669 completed lists
On 16 unfinished lists
On 185 custom lists

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User Comments [ Order by usefulness ]

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Kodaka does it again.   
Rating: N/A
by LikaLaruku
February 23rd, 2014, 4:17am
I can always expect quality storytelling & character development from The Great Kazuma Kodaka.

This made me realize just how rare it is to have a love triangle where it could really go either way instead of knowing right off the bat whom is going to end up with whom at the end. (Well, it's obvious by chapter 7, but there's only 12 chapters) Our cute indecisive little protagonist finds himself unable to chose between three possible love interests. If the 3ed hadn't been a girl, then this would have been a gay harem. There's irony in that he seeks advice on love from the very guy whom rejected his father.

This is more of a spin-off than a sequel, as it revisits one relationship set in Kusatta Kyoushi no Houteishiki a few times. Kouji, Masayoshi & Masami are still identifiable despite their new hairstyles & glasses, but Arisawa & Tooru...You have to be TOLD it's them. There are 3 other people who look like Arisawa in different stages of his life; Hagiwara, Konomi, & Kanon.

The faces aren't exactly Dr. Ten levels of expressive, but you can really tell what the characters are thinking by the looks on their faces, especially in chapter 5.

... Last updated on February 23rd, 2014, 5:27pm
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Rating: 9.0 / 10.0
by blueseeker
October 15th, 2011, 4:04pm
That was extremely cute, i hope sensei can write about them soon! I had to keep reminding myself that they were both in junior high, so the drama they experience is realistic....just my adult mind who has a hard time reading about it.LOL

Update: So adorable even years later! Noticed a 3rd volume in the amazon site, can't wait! Please someone translate it!

... Last updated on August 23rd, 2015, 12:05am
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Wow! Great!   
Rating: 9.5 / 10.0
by sofistree
September 15th, 2011, 3:45pm
Oh my gosh, I loved this! All the characters were great, and none of the conflicts were insane! I mean, there were hijnks, but it was all done really, REALLY well!

Megu starts out indecisive and a bit bratty, but he really does some growing up. I loved watching him mature and realize his faults and which ones he needed to change. He is only a middle schooler. I'd love to see more on them when they're in high school (and beyond!).

I loved all the characters and all the couples! And I was thrilled they treated being gay as just another thing and not some earth-shattering event. That way I could focus on my lovely boys. biggrin

The boys actually act a litte more normal in this than in some other manga; the ukes (or, in some cases the future ukes) aren't terrified of sex or pretend they don't want it (which is super creepy and uncomfortable), and they actually initiate romance, like kissing their boyfriends. That shouldn't be something unique to the world of BL, but it is (sadly...).

It's a great story! I'd highly recommend it!

My only complaint is that there isn't a sequel.

... Last updated on March 20th, 2018, 7:56pm
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Rating: 8.0 / 10.0
by Poemi
March 29th, 2009, 3:28pm
Megu was not my favorite character, he was way too indecisive. And I would've liked to see a bit more cameos from the Kusatta story. Otherwise, great stuff!!
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Rating: 10.0 / 10.0
by LadyAOI
December 13th, 2008, 10:12am
Kazuma Kadaka mangas are awesome not just the art which is one of the best imo but the story lines are oh so good and very funny. When you read any of her works you will not be let down this one is NO exception, whether it's hard or lite yaoi she definitely knows what she's doing! Check this one out!!!
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