
why was he adopted into that family?
i bet that his adoptive dad loved his mom but it wasn't returned that's why he treats Tsukasa better than his real son. and the reason why he doesn't remember the enigma guy,
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someone(can't remember who) stated that he was made to forget so i'm guessing that his adoptive father wanted it to be so that Tsukasa didn't suffer the grief of loosing his parents or he just wanted his fantasy of having a child with Tsukasa's mom
fuck you, guy