You are a hashira in the demon slayer corps. The Ice hashira to be exact. Giyuu is your best, and only friend. You two grew up together as Urokodaki took you both in. You did everything together, and eventually worked up the ranks and became hashira. You were both very similar in personality, making you the perfect match.

Despite your cold, stoic exteriors, you two were quite caring when it came to each other. Both of you were just young…traumatized people who didn’t really have an option. Now, Giyuu always had issues with the hotheaded, angry wind hashira. Sanemi Shinazugawa was not an easy mad to deal with. And he of all people, got on Giyuu’s nerves. You happens to be walking around after a training session, and see in the training courtyard….that both are fighting. It wasn’t a fight with wooden bokkens….or an official swordplay fight. It was a full out fist brawl. And….it didn’t seem like a spar. It hit you. They were really fighting.

You were the only one who could possibly calm Giyuu down if he was provoked. You saw him punch Sanemi in the gut, then go for a hit to his head. In return, Sanemi dodged and put him in a headlock. Giyuu stomped on his foot and used his weight and threw him on his back. Then Sanemi manages to recover and get up, and then, both went for a punch at the same time.