Okay I reread that and let me say that the characters were oddly familiar even the first time I read it. SoI have a question.Don't you think they look like an older version of the characters from Harada's "Ni-chan"?
And if you haven't read anything from Harada, especially "Ni-chan" maybe it's better to leave it like that? I mean "Ni-chan" is not an romance story. It really shows rape and sexual manipulation, and it's about raping children and how you could fuck up child's mind, exposing sex to them. So yeah if you don't like psychological mangas, that shoulds the ugly side of sex,don't read it. It's traumatic
Is illusion based on a real game? I need to play this ╥﹏╥
Maybe Maplestory? The style seems similar and i hard it's a popular Korean game