Talk:Saiko Yonebayashi/@comment-86.186.15.151-20150527140313/@comment-25047329-20150527222639

^I forgot which chapter it was specifically, but I know it was during the "Raid of Kanou's Lab" arc. Kanou was looking over one his failing experiments and mentions to Nashiro that blood type wasn't a factor.

It looks like he was using that as a basis for a while since Rize, Kaneki, and the twins all happen to have the same blood type, but there were to successful results after that.