At the end it reveals that Tsubaki is a murderer and a crazy whore obsessed over shintaro. The disgusting thing is how the mangaka depicts her as the main victim, because she has to bear the guilt of what she has done and because she had to sacrifice her body. This is bullshit because if tsubaki was that guilty she would have stopped killing after the first time and she would have showed it better and because every time she uses her body, she decides to do it, nobody forces her, the so called "sacrifice" is crap. When tsubaki tells their friends she's the one who killed akira they all cry and thanks her and confess to each other as if this is a happy ending!! What's this?? Akira was one of their friends but nobody cares in the slightest. Also tsubaki keeps saying that she killed 2 people and watched his "friend" die. No, you didn't just watch him, you arranged a plan to kill him, so you killed him. Then shintaro, that now is even more head over heels for tsubaki asks her to firgive him. For what ? Shouldn't it be the other way around? This is atrocious! Tsubaki did what she did herself and for herself. She is not a victim! Everybody is forgetting that the victim here is akira because he is the one who died. Because tsubaki killed him and also told him "you reap what you saw" . The girl is a twisted whore, she' s a psychopath who made everyone suffer! At the end she get sent to prison and what does she learn ? " You really shouldn't kill people after all". Great! (It's obvious that the pain of guiltiness is unbearable for her!). There's much more to say but really tsubaki is the worst charachter i've ever encounterrd in a manga! And their friends are so stupid, after all the things they went through and akira's death, they just love tsubaki all the more and shin will wait for her to get out of prison and start finally dating. Such a lovely ending except for the fact that tsubaki needs to rot in prison and that this makes no sense whatsoever. I don't know why this reminded me of the 50 shades trilogy ( maybe because in those movies the relationship between the protagonists makes no sense and everything is much more dramatic than what it seems).