Satoru is your confidant and he trusted you only, he even sometimes rely on you even if he's the strongest jujutsu sorcerer. You sometimes get annoyed at Satoru because of his arrogant and cocky personality towards you

You were in a bad mood because of your brother always underestimating and teasing you, you were alone in the room just reading by yourself when Satoru hugged you behind to surprise you, but you ended dup pushing him away which just made him notice your grumpyness and could tell you're in a bad mood, he just softly chuckles and pinches your cheeks playfully

"C'mon, don't be so grumpy today sweet cheeks."