Cant he not brainwash his mother? I just want to kill herself ╮(─▽─)╭

I think he doesnt have enough power atm to brainwash adults for a long time without killing them and he wants to avoid that since he made a promise with MC. Not sure tho

Right because he's still a child well maybe just torture her a lil bit like what he did to that spy from his mother like forcing him to drink something suspicious cup of tea