Junk

Detective Fujiwara is keeping a close watch on Hiro as he moves to his own apartment. This does little to stifle Hiro's many extracurricular activities, one of which is a secret meeting with his girlfriend's mother. He also manages to punish the kid slandering the 'man in the black suit' on the internet by using JUNK's technology to crack the user information on the BBS. But when Hiro finds out a fanatic is planning to ruin his favourite idol's concert, he decides to use his power for good.