Ranked N/A

Koisuru Boukun (Manga)

Koisuru Boukun

Alternative Titles

English: The Tyrant Falls In Love
Synonyms: Koi Suru Boukun
Japanese: 恋する暴君


Type: Manga
Volumes: Unknown
Chapters: Unknown
Status: Publishing
Published: Apr 7, 2004 to ?
Genres: Comedy, Romance, Yaoi
Authors: Takanaga, Hinako (Story & Art)
Serialization: Gush


Score: 8.531 (scored by 6584 users)
Ranked: N/A2
Popularity: #309
Members: 12,451
Favorites: 1,016
1 indicates a weighted score
2 based on the top manga page. Please note that 'R18+' titles are excluded.


Graduate student Souichi Tatsumi is demanding, violent, tyrannical...and a homophobe. So, it's unfortunate that his best assets are a beacon to the homosexual eye: his ass and crotch. Unfortunate, indeed—for both him and his underclassman -slash- lab assistant, Tetsuhiro Morinaga, who is hopelessly in love with those assets despite the threat to his own personal safety.

Morinaga longs to tell Tatsumi how he feels, not to mention other longings... but, given Tatsumi's personality, Morinaga has a better chance of winning the lottery.

(Source: DramaQueen)


Koisuru Boukun has been published in English by Digital Manga Publishing as The Tyrant Falls In Love under the Juné imprint since August 17, 2006. The sixth volume ranked 5 in the New York Time's Best Selling list on June 9, 2012.

Related Manga


Tatsumi, Souichi
Tatsumi, Souichi
Morinaga, Tetsuhiro
Morinaga, Tetsuhiro
Taichirou, Isogai
Taichirou, Isogai
Tatsumi, Kanako
Tatsumi, Kanako
Tatsumi, Tomoe
Tatsumi, Tomoe
Kurokawa, Mitsugu
Kurokawa, Mitsugu

Write a review | More reviewsReviews

Aug 30, 2009
Here we have a story about the goofy Morinaga who has been hopelessly in love, for 5 years, with his egotistical-violent-grumpy- homophobe sempai, Souichi…ahem!, yes, that is The Tyrant.

You guys maybe have seen lots of these stories, so, the conspicuous word here would be homophobe, this is not an euphemism, Souichi hates homosexuals deeply since his little brother was “taken” by one (figures, we have also a brother complex here). But isn't it kind of strange that in spite of knowing about Morinaga’s crush on him he acts like that didn’t happen at all?

As expected, the "poor" goofy guy feels that there is nothing more read more
I found this review Helpful
Jan 6, 2011
The Tyrant who Fell in Love in an entertaining romp sure to give you some laughs and leave you with a grin on your face. It features a pairing I've never been able to resist; an older, tsundere uke (Tatsumi) and a more reserved seme (Morinaga) who pursues the relationship. If you're a fan of the Egoist couple of Junjou Romantica, you're likely to enjoy this couple.

So we have Tatsumi Souichi, a self-proclaimed gay-hater whose two favorite people in the world...are gay. He's a classic tsundere; loud, brash, hot-headed but also a bit shy and easily flustered. I think what makes this 'walking personality disorder' read more
I found this review Helpful
Jun 6, 2010
Koi Suru Boukun~! It's like, so different from other yaoi manga!! Gosh, I'm sooo tired of that stereotypical crap, let's get some backbone into my ukes!

Oh how shortsighted the thought is. Well then, let's go.

Plot: Rape is love.

Contradicting homophobe has a gay best friend and a gay little brother. Said best friend is in love with him but "doesn't attempt anything because it might ruin their friendsh--" wait no, Morinaga has no qualms about raping the man he's been lusting after exclusively for the past so or so years when he gets an opportunity to do so. This was never about friendship and all that read more
I found this review Helpful
Mar 30, 2010
I have only recently started reading this series and fell head over heels for it. It reminded me of "the book" that started my gay romance frenzy. It was a "straight romance" book that had a bromance on the side that unfortunately for me never blossomed. I love the "I am only gay for you" relationship where love has no boundaries or sexual orientation.

I also don't normally go for the skinny types but this story was an exception:

the dominant male being the uke
lab research and scientists
forbidden love
gay only for you relationship
Some straight characters with a strong role in the story
And it's so darn funny! read more
I found this review Helpful


Manga: Junjou Romantica
Tyrant just completely reminds me of the Egoist arc in Junjou. The characters are just so similar; the way they act, the way they look, even. (Morinaga practically IS Nowaki) The only difference really is the fact that Tatsumi is straight while Hiroki is gay. 
reportRecommended by YakuzaDog
Manga: Kirai ja Nai kedo
Treats for those who are fond of tsundere ukes that can't easily be tamed. Also, for those who are interested in the drama cds, both have the sexy Toriumi Kousuke voice for one of the leads in them. 
reportRecommended by gumdrophop
Manga: Abarenbou Kareshi
Love out of a similar situation 
reportRecommended by miwako-hakusho
Manga: Kusatta Kyoushi no Houteishiki
as i ws reading this one i couldnt help but think how simular it is to tyrant all most the same look in chars and thier personalities too but the story line is completly different but if you liked kusatta the you will also like tyrant 
reportRecommended by Ri-Kana
Manga: Hana nomi zo Shiru
In both, they study and work in a lab and they have difficult to accept their feelings and sexual orientation, but have in mind that Hana nomi zo shiru is a heartwarming love story and Koisuru boukun is more like a romantic comedy with more sexual scenes. 
reportRecommended by darkuria
Manga: Gokujou no Koibito
By looking, the main (long-haired) characters are pretty similar and also both stories have "crime" part (a little bit, but have). I enjoyed both of them, so I'm recommending :) 
reportRecommended by Patry-chan

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Recent Forum Discussion

Koisuru Boukun absolutely destroyed my life.
Helldragon - Nov 21
1 replies by deathbyglitter »»
Nov 23, 7:34 AM
What do you think Tatsumi felt for Morinaga by the end of the manga?
mirana - Aug 19, 2014
4 replies by iracebetth »»
Aug 14, 6:35 PM

External Links

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