It's a cute story with a psychological twist and it really portrays the Deep effect childhood has on a person's behavior in adulthood which I really like as someone who wants to be in psychology. But also it has this deep connection between the characters and it develops the relationship in such a way that you don't even know the relationship is being developed until like they confess which is really beautiful. Also I really liked the way the characters revealed traits of their personalities after realizing they're in love because that's realistic in a way as well as how some scenes when read twice can be perceived another way. That one scene before the conclusion which was before they talked to his brother was really well thought out in the way that when I reread it I thought that maybe instead of being angry for himself he was disappointed that he still didn't understand how it could hurt others and I really like the characters personality showing through that whole scene and I really wish there was more because it was a great one honestly. Its a must read.
Oni to Tengoku