Things that Heck Me Up:
Shouto’s little smile after casually using the powers that he has hated and rejected his entire life–powers that were bestowed upon him by his abuser no less, to help out his friends.
Not just rejecting his abuser’s ideals and using his powers in spite of him, but using the very tool that made his entire life miserable–for fun and mundane activities–to be a KID and help others and grow closer with other kids his age.
Shouto’s genuine smile for getting the chance to just exist as himself.