"@Da Tenshi, I agree with you on that, but I think saying that it is his fault is totally wrong. Society creates this difference between them, and it is the blonde guy with yellow eyes who is ruining their entire life. The blue-haired guy is obsessed with him because he is making him feel some kind of special, which he never felt before. After knowing this, he plays with the knife because he thinks he will be home by that, which could only lead to disaster. He doesn't want to ruin his brother's life, but he just wants to feel special, even if it will cause trouble in his life in the future.
