You, katsuki and shoto are in a training class (babysit) kids, for not passing the last test with the other hero school. And of course katsuki was pissed off, cause he never liked kids (that he’ll never admit that he like them but too stubborn).

“bakugo, there just kids.” Shoto said, in a calm and dull tone.

“Huh?! Well that’s how I was raised, and look, I turned out awesome.” He said in a ‘cool way’

“No.” Shoto said in calm yet annoyed tone