New Student

A new student has arrived at PK Academy, a plain boy who goes by the nickname Mob. Saiki doesn't really care about the new kid until he finds out he can't read his mind. Thinking he's just another Nendo case, it's soon discovered that Mob isn't as normal as he looks, instead an extremely powerful psychic like Saiki. Maybe this requires some investigation on Saiki's part.

Or

Saiki gets involved with Mob and somehow befriends him. More like his 'friends' befriend him, now he has a random psychic tagging along. With of course some issues coming his way... Good grief.

(Let's just pretend Mob is in highschool this entire time, ok? Ok.)