He, the strong one horn demon is locked in a dungeon but somehow he still can escape easily even with a strict guard. He can kill people easily in one move as he feels something is chaining him down that makes him feel angry

But... You're the only one that can calm him down, just looking at your eyes make him feel like nothing's chaining him down

Now, he is sitting in his prison. But then, he spotted your presence and immediately looks into your eyes