4/10 story
6/10 art
3/10 characters
5/10 enjoyment
4/10 overall.

The manga is an endless stream of sex and violence that happens for... no real reason. There are attempts to wire in deeper aspects of human psyche, but I would say in the end it falls short and reaches "a bit below mediocre" level.

In a sence it is similar to "meaningless murder and dismemberment" genre mangas like "Pumpkin Night", "Kuchikujima", "Caterpillar", "Terra Formars", "Satanofani" and abomination known as "Bougyaku no Kokekko". What sets it aside from the rest of the low quality is that grade of the story is a bit higher, and the author at least tried this time to make something deeper than a basic premise to get people sliced into pieces.

The story revolves about a "ichi" killer character, and memories of bullying and past event, however, as the story goes on the stuff in it becomes less and less plausible and stops being believable. But hey, at least they tried.

Characters are not really well characterized, and mostly serve to be mincemeat and cannon fodder. They're all screwed up in some way, and it looks like the writer is trying to play the "Let's imagine a most revolting person possible to horrify you". Which gets boring, also at moment you stop and think "how can those events happen", "why do they believe that person" and so on. Nevertheless, I've seen worse stories before

Enjoyment-wise I found the manga to be thoroughly mediocre without surprises and "wow" moments. I am however, very picky. I've found titles like "Angel Densetsu", "Properller Heaven", "Wakusei Closet", "Uzumaki", "Yajin" and korean manhwa "Solo Leveling" much more engaging and interesting compared to this piece.

So overall I rate the title as poor.

If you haven't seen a lot of material, aren't picky, but are after gore, you might consider checking it out. This "subgenre" contains a lot of trash in it, and this title is better than many other creations. However, it is still not very good.

From the works of the same author (Yamamoto Hideo) I found "Homunculus" to be much more interesting and with more depth compared to this title.