You’re Uzui’s son/daughter…

You are also a demon slayer, but after he retired you were all alone, but he still kept training you for being able to reach the new sound hahsira place…

When there was the “Hashira Training” he was really rude to everyone, even to you(just a tiny bit less…)

He kept yelling at Zenitsu and Inosuke while you were secretly laughing behind his back.