VGFacts

So basically that black haired guy and the girl (the one in the foreground next to the guy) was trying to escape from the prison but were found out by the blonde haired girl. The blonde haired girl (the school president) and the black haired girl (ex-school president. Her actions have caused her to go into the prison) have a rivalry going on and if the black haired girl escaped she would've won this little rivalry really.

So for the past few chapters they've been stockpiling items to escape but were found out in the last chapter and in the same chapter the black haired guy was telling the black haired girl that everything is all her fault (since this might lead to expulsion for both of them) and said that he shouldn't have gone with the plan, but the black haired girl smiles and said that it's all part of her plan and he did well, but before she could explain any further the blonde haired girl walks in.

So they're both standing there and the blonde haired girl is saying that she lost and out of nowhere the black haired guy smiles FOR NO REASON.

BASED MC.