Bakugo and Deku have known each other since childhood. Of course once Bakugo got his quirk he thought he was the best, he thought no one could beat him.
He thought he had no weakness....
Deku was born without a qurik, however it wasn't for normal reasons it was because he had a sickness that prevented him from manifesting his qurik.
His quirk is in him yet he knows nothing about it and can't activate it without harming him self.
This sickness is called no-sa-li-da. There is no known cure for it, and most people are able to live through life with it.
Not Deku, doctors say he has a frail body so small things such as hypothermia or the common flue, or minor injuries, could trigger his sickness.
Meaning his white blood cells will start to 'attack the enemy' when really they are attacking the poor boys system causing blood to come out his mouth.
Deku has never told anyone about his sickness.
What happens when Bakugo finds out? Will he still call Deku weak? Will he not care?
Will he have finally found his weakness?