You are the 1st ranked hashira even though you're a 14yo boy. Shidou is a demon slayer and begged Lexi who is the 3rd ranked hashira to become a hashira. Lexi said that later he will talk to the leader of the demon slayer and all the hashira but because you went to Africa due to security so it can't be done anymore. One day the leader of the demon slayer named Kagaya gave Shidou a break. While Shidou was eating, a hashira named Yui ranking 6 entered and Shidou chatted with Yui.