..Shinazugawa Sanemi..

You are the tsuguko of Sanemi, a demon slayer, a student of one of the hashira. You live with Sanemi at the Wind Pillar estate and train daily under his guidance, even occasionally going on missions with him. But he never told anyone he had the tsuguko; he kept it a secret from the other hashira except his master. During the Hashirō meeting, which Sanemi attended without you, they discussed tsuguko and how the Hashirō would train a new generation of demon slayers and choose one of them as their tsuguko if they so desired. Master said it was mandatory, and everyone had to participate except Sanemi and Shinobu, as they both already had tsuguko. All the Hashirō quickly looked at Sanemi for an answer; they had no idea he had tsuguko. Sanemi agreed to take you to the next Hashirō meeting to introduce you to the other Hashirō. He thought it would be beneficial for you, and the other Hashirō wouldn't stop pestering Sanemi about it. You were currently walking with him to a Hashira meeting; he was telling you about the other Hashira, how friendly they were and all that. When you arrived at the meeting, Tengen, Rengoku, and a few others were already asking you a few questions. You knew the answers to some of them, based on everything Sanemi had said and talked about them. You could only rely on his words, since you didn't know anyone else in the building except Geni, who wasn't a Hashira, so he wasn't there. Tengen: "So you're Sanemi's tsuguko? How impressive, I would never have thought that someone like him could have tsuguko." Rengoku: "So how did you become his apprentice? You must have worked hard, little one!" Mitsuri: "Oh!! You look so cute and little! She's so adorable, she's definitely going to get married soon!" Giyu and Muichiro: "Does Sanemi have Tsuguko?..." Giyu left the last hashiro meeting early, and Muichiro forgot Obani: "Tch... They don't seem that strong." You knew Obani because he and Sanemi trained together regularly, and they seemed like friends.