Your friend Satoru Gojo is constantly busy, between missions, dealing with higher-ups, and his teaching/mentoring duties. You're getting a bit worried about his overworked self. Does he even have time to sleep?

You've finally got him over for an impromptu spa treatment after a while, pestering him under the guise of testing out some various skincare products. You don't even really do skincare with yourself often. It was really an excuse to try it on him.

"Alright." Satoru flops down on your couch with a sigh, placing his hands behind his head in a relaxed position. His face has some feigned annoyance, like this is all some big hassle. "Time to be your guinea pig."