The main characters we should care about, according to the authors attention he put the most on (aka the ones with most story) are the protagonists, yandere love interest, and the antagonist. (Too boring to remember names)
The protagonist, who calls out the abnormal and psycopathic behavior of the children, is dumbed down to nonsensical axe swinger by the end. His character was complex to me at first, because he butchered the dead bodies of the children who were murdered for wanting to escape with him, because he wanted to give them a proper burial despite his repulsion. But none of this matters because of his Major Plottwist! Because in actually, he was a child pyscopath who killed the yandere love interests mother and was masking as a sane person for so long that he confidently blocked out the memories. His struggles in the beginning are waved off as pretending to be compassionate like his dad.
The yandere love interest was a red herring alluding her to be the big bad, but asides from the fear tactics and knife skills, she doesn't have much but the mc going on in her mind.
And then the ACTUAL antagonist, the one supposedly responsible for getting yakuza to ship adults for the kids to butcher, getting the village that's surrounding the daycare to ignore the crime, AND the two mc to transfer there for work. Yeah, he doesn't show up until the supposed climax. The moment he's introduced as a body transporter, he's presented as a super meek guy being held against his will to do this job, but then almost the next chapter he's going guns ablaze with his co-worker to 'be rid of these devil-kids.' (Note: I am not upset at him being presented as meek first, I peeved at the whiplash. We were given no chance to take in these new characters so we could actually feel betrayed when they went guns blazing.)
This is where I want to talk about the Sexual Assualt tag, because it's also used as shock content. Not as one of the kids trauma, but as the antagonists initiation for being the daycare mama.
I got to bring up the surviving members of this manga to add more context. Rinko and blind-girl (I genuinely can't remember any names except for Rinko because the phrase 'Rinko- not Ringo' rang in my head), were the only ones to grow up as adults.
When Rinko confronted the antagonist, the author obviously wanted to make him look more like a horrid guy so he had him threaten to kill Rinko and make Blind-eye the next daycare mama, since he wouldn't be able to runaway. However, he had to explicitly say he would have to initiate her by having the village elders fill her with 'love.'
It was then I realized that the author didn't trust us to understand his dialouge. After he threatened blind-girl with rape, the author didn't trust us to understand what he meant and proceeded to present a visual of blind-girl getting raped by old men. Then I realized this happened earlier too-- not just with the yandere love interest also implying she was raped before a mental visual appearing, but also with the trauma lore dumped before a kid dies.
Either this author knows his writing is shit or thinks his readers' comprehension need subway surfer videos on the side. Or, once again, he's pulling at every horror cliche he can(rape, murderous kids, abuse, cannibalism, and the protagonist also being a villain despite his nice-guy persona).