Responses
I think he probably planted the pictures he took of the naked Kokoragi into the teacher's office. Then he pretends to find out about it and blackmail the teacher. Since Kokoragi is on Yuuichi's side, she will testify that the teacher molested her (even though he didn't). So now it's the evidence + her words against the teacher, so he has no choice but to follow Yuuichi's demand.javascript:;
oohhh nice theory (づ￣ ³￣)づ
I think that's the best theory ever!
So they still stayed by Yuuichi's side, that's sweet. I wonder what he did to earn that money though, maybe blackmail?