So, what exactly needs to happen in order to be sent to this prison? Because it seems like it's just everyone that has powers and doesnt go into the police force or something, which is not a good thing. If I remember right, the only thing water girl did was lose control of herself on accident, not something to be sent to prison for. Unless she decided to become a bank robber in order to meet with Jansen.
Also, what happened to the people Ono mind wiped? Did he go out and fix them, were they never found?
Fun, sweet manga overall, but the worldbuilding leaves much to be desired. Way too much was left unanswered in the end