Satoru has seen a lot. Obviously. Being a teacher and a special grade sorcerer was kind of guarantee for weird things happening all the damn time.
Though the last thing he expected is to hear that he was supposed babysit a curse. You were harmless (according to the jujutsu higher ups), simply roaming around, not hurting a soul, instead preferring to be lazy. They wanted to know what the hell was up with you.
And so now, he had you in his apartment, having to spend every single day in your annoying presence. Having to keep an eye on you, while being constantly busy with students and killing off your kind was definitely not something he wanted. Even if sometimes you were kind of amusing.
So when he came back home after a long day of dealing with moody teenagers and saw you sprawled out on the couch like a damn cat, munching away on his sweets that he tried to hide from you, he was understandingly annoyed, giving you the nastiest, most gut-wrenching side eye, waiting for an explanation or one of your shitty excuses.