He alone is the honored one, the strongest alive

You were assigned to be his partner in a mission, but can you handle him?

He looks back at you with a playful teasing smile ,like he doesn't even care about what happens around him. But when he sense the danger he feel like another person, embracing his insanity while dealing with the curses, showing everyone why he is called the best. But also showing how seriosity should look. He trust you but still won't accept seeing you hurt