Gyakusatsu Happy End
Massacre Happy End
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Gyakusatsu Happy End

Alternative Titles

Japanese: 虐殺ハッピーエンド
English: Massacre Happy End
More titles


Type: Manga
Volumes: 8
Chapters: 55
Status: Finished
Published: Aug 3, 2017 to Dec 5, 2019
Genres: Horror Horror, Mystery Mystery, Supernatural Supernatural, Suspense Suspense
Theme: Psychological Psychological
Serialization: Manga Park
Authors: Mukoura, Hirokazu (Art), Miyatsuki, Arata (Story)


Score: 7.121 (scored by 30103,010 users)
1 indicates a weighted score.
Ranked: #70522
2 based on the top manga page. Please note that 'R18+' titles are excluded.
Popularity: #2234
Members: 8,830
Favorites: 106

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Ranked #7052Popularity #2234Members 8,830
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Volumes: /8
Chapters: /55


High school student Kusakabe Makoto has to work all day to raise money for the treatment of his younger sister, who suffers from a serious illness. The father is unemployed, the mother ran away, leaving the children, bullying at work ... Despite all this, he does not lose hope and continues to live for her sister. But having learned that she did not have long, Makoto falls into despair. Fear of the unknown causes him to take a different look at the value of human life.

(Source: Hakusensha, translated)


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Very entertaining and engaging. The manga manages to give a twist to the concept of time loops, and keeps you abreast of the decisions that the protagonist will make taking into account his goal and curse.

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Regarding art, it adapts very well to different situations, emphasizing the macabre of some scenes, not recommended for those with a sensitive stomach.

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It must be one of the mangas with more conveniences that have ever crossed my face. However, ironically, for the protagonist there are rather few; the rival detective is the one who gets almost all of them this time. Very cool also the conveniences of characters that, coincidentally, with how big Japan is, are always there to be found when the plot requires them to do so. There are tons of plot holes, and the author simply overlooks too many details that are essential for a psychological thriller like this work.

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Sep 27, 2022
I'm the type that reads most random manga that's out there, as long as the premise is interesting. Gyakusatsu Happy End has an incredible start that starts nose-diving into one of the worst writing imaginable.

Story: 1.5/10
The only thing the story does well is not to let either side hold absolute power and control. It does well on the similarities of Death Note, a cat-and-mouse chase. It has the tension at the start, albeit goofy with the characters that I'll explain later below.

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Interest Stacks

50 Entries · 264 Restacks
by lacarde
24 Entries · 20 Restacks
by wavaxx
46 Entries · 187 Restacks


Recent News

Recent Forum Discussion

Poll: Gyakusatsu Happy End Chapter 55 Discussion
buqcay - Mar 7, 2023
3 repliesby Exiz79 »»
Oct 29, 2023 10:47 PM
Poll: Gyakusatsu Happy End Chapter 34 Discussion
buqcay - Mar 7, 2023
1 repliesby Exiz79 »»
Aug 30, 2023 7:43 PM
Poll: Gyakusatsu Happy End Chapter 45 Discussion
buqcay - Mar 7, 2023
0 repliesby buqcay »»
Mar 7, 2023 8:54 PM
Poll: Gyakusatsu Happy End Chapter 5 Discussion
buqcay - Mar 7, 2023
0 repliesby buqcay »»
Mar 7, 2023 1:59 PM