Sumanai!! Masumi-kun
I'm Sorry, Masumi-kun!
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Sumanai!! Masumi-kun

Alternative Titles

English: I'm Sorry, Masumi-kun!
Japanese: スマない!!マスミくん


Type: Manga
Volumes: 1
Chapters: 5
Status: Finished
Published: Oct 29, 2008
Genres: YaoiYaoi
Authors: Itsuki, Kaname (Story & Art)
Serialization: Hanaoto


Score: 7.481 (scored by 19701,970 users)
1 indicates a weighted score.
Ranked: N/A2
2 based on the top manga page. Please note that 'R18+' titles are excluded.
Popularity: #4087
Members: 3,419
Favorites: 10
Ranked N/APopularity #4087Members 3,419
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Volumes: /1
Chapters: /5
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Shiraishi Shoutarou, a novelist, just learnt that his young and honest editor-in-charge, Osanai Masumi, would marry his precious daughter. But his daughter went missing right before the wedding!

So now, Shoutarou is living under the same roof with the man who was supposed to be his son-in-law...

(Source: MU)


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More reviewsReviews

May 14, 2011
Nameless0 (All reviews)
How far would you go to be with the one you love? Fake a marriage with his daughter just to be closer with him?

Shiraishi Shoutarou one of the sweetest father out there. Abandoned by his wife, he alone raised his little daughter, to the woman she is today. Sweet as the man is, he is just as clueless.

His daughter pulls a stunt, and plans a marriage with his editor. Sweet, naive, and very much in love with Shiraishi, Osanai Masumi. However the day before the wedding, the daughter "runs away". The father takes in his future son in law, without a single read more
Feb 18, 2014
kazumaxayano (All reviews)
The summary of this manga kind of threw me off. The fiance of the runaway bride comes to live with the father of said bride? And since this is a yaoi and there were only two male characters mentioned, we can all guess exactly what is going to happen between those two. Is it wrong to think it'd be kind of cringe-worthy if the guy slept with both daughter AND father?

Well, don't let that get to you, because this manga is definitely worth reading. The story is actually pretty simple and, if not always predictable, is never really surprising (though there is a related genre read more

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Poll: Sumanai!! Masumi-kun Chapter 5 Discussion
Roth - Sep 3, 2014
1 replies by Mayuka »»
Jul 9, 2016 1:02 PM
Poll: Sumanai!! Masumi-kun Chapter 4 Discussion
Roth - Sep 3, 2014
0 replies by Roth »»
Sep 3, 2014 1:27 AM