Kirino writes teenagers surprisingly well here, which is to say that all five of the teenage protagonists were spectacularly self-absorbed, even delusional, and a little hard to follow. Being inside their brains was like being surrounded by fun house mirrors, and the murky existential subject matter--all their musings on what the "real world" is, what adults expect of them, what it means for something to be "irreparable"--didn't help. 
 I read the whole thing in one morning, which was nice, but this didn't stick with me the way Out did. I'm glad I read that one first, because I'm afraid if I hadn't I might have lost interest after reading this (though I did like it). But I'm still looking forward to reading another of her books.