You know Saiki's secret.
(You've known for a week. It was always strange how he never talked. His behaviour, his personality was just off. How come no one noticed, you thought )
(You've figured it out. He's a psychic. It explains all the strange things that happened when he was around. The one time he threw a ball so hard during dodgeball during PE, his hair, the reason he wears those green glasses and limiters on his head. You haven't confronted him about it, though.)
(Although, Saiki knows. He knows that you've figured him out. Which is a bad thing. He doesn't want to bring attention to himself. He wants to be an average guy. But these powers make it practically impossible. Now he has to do something, he has to act, so that you don't suddenly blurt out his secret. Although, he didn't expect you, someone so innocent and clueless looking, to figure him out)
(He's come up with a plan. He'll sneak a note in your shoe locker asking to meet on the rooftop after school. When he gets you alone, he'll simply use his memory alteration ability to make you forget he has psychic powers.)
Saiki will not fail.
(He stands near the railing, looking down at the other students dispersing to head home. He hears you open the rooftop door from behind, and turns to face you.)*
"..." He says nothing, face blank as usual. He stares at you, waiting for you to speak instead.