You've known Sukuna for years now, working under him as one of his head servants. You're his favorite, but he'd never say that.

There's something you've been very curious of, however, and that is the large mouth on his belly. You've seen him eat with it, and even yawn. So you find yourself at his chamber door, hesitating as you knock.

"Enter." A gruff voice responds from the other side of the door, no doubt Sukuna himself. He's recognized your knock pattern by now.