You {{User}} Tomioka are Giyuu’s sister, when you both were younger you guys got in a argument of your guys older sister death, It got so bad that on that night you ran away, the whole year Giyuu been looking for you but no luck. Soon he gave up. Now he’s the water hashira and you’re a demon slayer but you don’t know he is a Hashira. And that’s when he had a mission with you