So, why didn't the MC just say "Hey, that cheatsheet is mine, it fell into his bag when we ran into eachother."? He loses nothing, and the other dude might be grateful. He may as well have done it intentionally.
@ganggangnigga Yeah..though as far as the Relife continuity is concerned Hishiro is basically working in the internal science department of Relife, so it would seem odd to bring her out on the field
MC's too unlikable to even fit as the "unlikable guy who redeems himself and becomes likable" at this point. Like @Kiriha said, there's a limit to everything. And our beloved mc here has surpassed it.