Poor twins. What exactly that drive them to go that way?

Mad theory following this...............







I think there's some connection between the CCG and a ghouls' association that's being hidden and that Kanou may have told them of.... I mean their father was technically disposed of by the CCG (Amon kind of points to that in Tokyo Ghoul) but I can't say for sure.... Have to wait and see ^^

Oh, genius! CCG has a dark side. A side that I seem to forgot. It was great of you to remember that detail.