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Bi no Isu  
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1) Bi no Isu (The Coercion Chair)
Kabu and Nirasawa have a troubled relationship, to say the least. Harsh yakuza lifestyle, torture, and violent sex are everyday occurrences for the volatile couple.

2-3) Anya no Tsubute
Sequel to Bi no Isu

4) Tokage to Choutsugai
Emiri is impotent, thanks to his trauma of being molested by his childhood friend, Fuyu. Years later, Emiri is finally seeking treatment for his condition, but why is Fuyu wearing that white coat?! And why is the nurse's skirt so short?

5) Seiritsu Shinai Asa (The Morning That Will Never Happen)
What will happen years later when senpai and kouhai meet again? Is loving someone that frightening?


Related Series
Kobi no Kyoujin (Sequel)
Portrait In Blue (Adapted From)

Associated Names
Kobi no Isu
Seiritsu Shinai Asa
The Coercion Chair
The Morning That Will Never Happen
Tokage to Choutsugai

Groups Scanlating

Latest Release(s)
v.1 c.3 + Extra by Dangerous Pleasure (2653d ago)
v.1 c.2 by Dangerous Pleasure (2708d ago)
v.1 c.4 by Dangerous Pleasure (2764d ago)
Search for all releases of this series

Status in Country of Origin
1 Volume (Complete)

Completely Scanlated?

Anime Start/End Chapter

User Reviews


User Rating
Average: 8.1 / 10.0 (596 votes)
Bayesian Average: 8.02 / 10.0
 28% (169 votes)
 20% (120 votes)
 19% (116 votes)
 16% (95 votes)
 8% (49 votes)
 3% (19 votes)
 2% (10 votes)
 1% (5 votes)
 1% (5 votes)
 1% (8 votes)

Last Updated
April 16th 2016, 2:40pm PST



Category Recommendations





Original Publisher

Serialized In (magazine)
b-Boy Phoenix (Libre Shuppan)

Licensed (in English)

English Publisher

Activity Stats (vs. other series)
Weekly Pos #498 increased(+146)
Monthly Pos #648 increased(+110)
3 Month Pos #817 increased(+61)
6 Month Pos #847 decreased(-100)

List Stats
On 338 reading lists
On 199 wish lists
On 2205 completed lists
On 28 unfinished lists
On 452 custom lists

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User Comments [ Order by usefulness ]

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OH GAWD. This is HARSH. I LOVE IT!!   
Rating: 9.0 / 10.0
by Fujoshi66
January 10th, 2015, 5:44pm
The SEX. The SEX. My GOD, I've never seen such wet, dripping, pounding sex before! (Yes I have, just not usually). So much detail went into the's...almost kind of disturbing to be honest. But, this's a harsh manga, so it fits perfectly. Deal with it. The art is made to intimidate you. And it pulls that off pretty well. Fuck, even their DILDOS look intimidating! HA!

I liked all the harshness. Most Yaoi mangas are so sappy and so pitifully stupid. I'm a sick, twisted person, I want gore! I don't approve of rape, but in this case, it was needed.

The first story was pretty good. Most Yaois can't do a good mafia, but my GOD, this manga does. About FUCKING time! This has the harshest sex, everything here on out isn't as bad (in my opinion).

The only thing I have to complain is...I hated the uke in the 2nd story. He looks like he hasn't aged past FIVE (looks like a very tall five year old) and he always looks shocked, or sad. Annoying, I hate baby ukes. That's what that fucker is, a baby. I guess that explains his PITIFULLY small dick. Yeah, I went there. The seme? He's hot, I liked him.

The third story? Uhhhhhhh...I didn't really care about it. I fell asleep on it, so I'm the wrong person to ask...

If you can't stomach abuse, HARD SEX, and blood, I recommend looking up Yaoi about merman.
The adorableness will snap you back into reality right quick! biggrin
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Rating: 8.0 / 10.0
by Airendy
September 12th, 2014, 4:53pm
I don't usually like the sort of abuse featured in this manga but for this story it works. Maybe the redeeming factor was that the seme himself knew he was being a prick and couldn't understand why Nirasawa would love him.
Bi no Isu could have used greater plot development, but the romance element was there. It was slightly realistic, if highly dramatized. (Did anyone notice how the father pulled his mistress in front of him to block the bullets, and yet she thinks that he was trying to save her and asks after him?! Well, it is a yakuza world, and I would expect them to care more for th boss than for themselves.)
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()_() my eyes are scarred   
Rating: N/A
by childlike_thunder
December 2nd, 2013, 3:41pm
S&M? Not my thing. Blood, gore, pain, the lack of love, abusive emotionally and physically--aaaaall NOT my thing. That being said, the first scenes are shocking. But the abusers in these cases are actually softees. Like an exaggerated case of tsundere or a toned down case of yandere.

And yes. Hot scenes. 9/10.
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love love love   
Rating: N/A
by cherrykookie
April 21st, 2013, 10:52pm
this is SO flipping hot, sexy, and steamy- I can practically feel the lust emitting from the pages. Although TBH I'm only talking about the first couple, Kabu and Nirasawa. The opening scene is a bit surprisingly, if you're not too keen on bondage, but we quickly learn that the captive and capture-er have some intense feelings for one another..heh heh. Okay seriously I don't know what else to say, but that i just love this couple. Love the yakuza setting (danger, passion, fear), love Nirasawa's loyalty, love Kabu's fear of his love toward Nirasawa, and the sex is SO.HOT. Oh, and the art is gorgeous. Make sure to read the sequel to this couple which is currently being scanned as well smile

... Last updated on April 21st, 2013, 10:54pm
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Rating: 10.0 / 10.0
by sujinj523
March 30th, 2013, 4:26am
Not only are the scenes super hot, the story is freaking sweet. I love how Nirisawa is such an M. The of twisted story with all the hardcore themes make it one my favs. Sexy yakuzas and toys anyone?
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Rating: N/A
by sandyatthebeach1
December 12th, 2012, 6:31pm
Ike Reibun is amazing- so versatile, with consistently awesome art. The characters are drawn so amazingly well. The emotions and the detail put into them is so apparent and amazing. Plus, the character designs really fit- you know when you read some manga with an older guy, and he looks like 16? Well, not so here- Kabu is rugged and masculine, and Nirasawa is pretty dang hot, too, haha. This is pretty hardcore and has a lot of heavy BDSM, smut, and darkness- so if that's not up your alley... read this anyway, haha, maybe it'll convert you. It's very intense, and the yakuza seem a lot more real than anything I've ever read. Of course, I don't actually know anything about yakuza, but this is closer than some, I bet.
The only regret or complaint I have about this manga is that it was definitely too short- I wanted more of the main story! Also, this isn't just smut- you actually really sympathize, and feel with the characters (Kabu and Nirasawa's relationship actually tugs at your heartstrings), and they're not simple; they're realistic in the aspect that you feel like they actually think, and feel. I totally recommend this! It's great- it's smexy, and angsty (although not irritatingly so, and it fits in really well with the whole vibe of the story), not to mention, the art is wonderful, and the story is addicting. It's also got some cute, funny light-hearted moments to break up the dark parts, which are well-placed and greatly appreciated. All in all... just read it!

... Last updated on December 12th, 2012, 6:45pm
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Tough reading, but rewarding romance   
Rating: N/A
by raketsuban
May 4th, 2012, 10:48pm
When troubled youth Nirasawa left home, he was taken under the wing of senior yakuza member Kabu. Years later, Kabu realises that Nirasawa is not only willing to die for him, but is also madly in love with him. Kabu rejects Nirasawa, and comes to regret his decision when he is obliged to torture his former protégé for valuable information. But no matter whatís done to him, Nirasawa refuses to break.

I imagine for a certain type of reader the warnings above would be an attractive proposition, but personally, they just squick me. That, and the fact that Ike Reibunís art in this tankoubon is not just extremely graphic but is also realistic, made reading the first chapter of Bi no Isu difficult. Nonetheless, this is the first yakuza manga Iíve read in a long time where I actually believed the characters were yakuza.

Read full review here:
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REAL yukuza   
Rating: 9.0 / 10.0
by MangoLuve
January 2nd, 2012, 5:38pm
In yaoi, the yukuza tends to be softened for the uke and they appear way love struck and so this manga brings it all back down to what yukuza should really be like because they do what they need to and dont take nothing from no one. This rather realistic-ish potryal of it made it all the more sexy and thats why i enjoyed it so.
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Rating: 8.4 / 10.0
by whitespade
December 22nd, 2011, 12:16pm
the first story is very hot. im kinda scared of the uke, if this continue on he can become a full blown yandere lol. he is just not right on the head.

the second story, well just cause you love someone doesn't give you the right to rape them. but their master-slave relationship is still hot!

the last story is a bit of a let down after all the dangerous smexyness in the other two, but quite sweet nontheless.

anyway, the clean artwork is very nice, and all the characters look appropriately beautiful. however, i don't like their necks cos it look...a bit thick? i am just too used of lollipop head in manga i supposed. anyway, read if you like unequal relationship!
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CHAPTERS 1-3 & 4   
Rating: 8.5 / 10.0
by Kuroii
November 5th, 2011, 11:50pm
I love S&M and stubborn semes if you're the same as me, I totally recommend chapter 1-3
the art was perfect. the translation was smooth (thanks DP ♥) the story was great, sexy & funny. xD at least for me. anyways, it's a good mangasmile
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