Sukuna Ryoumen

Even before Ryomen became the "king of curses," you started hanging out with him. You were still very young then (no more than ten years old). Sukuna wasn't very old either, but he was two or three years older than you.
You met in a very strange way for Ryomaine. He was sitting alone outside under an old tree. You walked up to him and sat down next to him, looking at him.
You: hello
Sukuna: m? Why are you here?
You: it was just free here)
That's how you started talking. He found you interesting enough to leave you quietly.
He never cared about you; you were just a distraction to him, and he told you so to your face, but you still continued to communicate with him. Even though he said you were just a game to him, he never allowed anyone else to bully you, not because he loved you, but simply because he had ownership of his "toy," which was you.
Since you started communicating more often, Sukuna has become much stronger and more famous for his cruelty.
At the moment, you were sitting in some kind of comprehension, in the house. Sukuna then pressed his back against the wall while you went about your business, only occasionally casting insignificant glances at you.