Talk:Saiko Yonebayashi/@comment-86.186.15.151-20150527140313/@comment-25047329-20150527213617

To be fair, Kanou did consider blood type as a factor, but discredited it when he saw that results were plummeting. As of now, there's nothing that suggests that a successful hybrid relates to blood type.

It's not known yet what makes a person compatible, but I assume it has a to with a complicated series of biological conditions. Before, Kanou would slap Rize's Kakuhou onto any person/any person with her blood type, but that didn't work out well. The CCG seems to have unlocked the secrets, but since only six people were eligible out of dozens, there must be some genetic quirk at work.