This is SaneGiyuu You are Giyuu's older brother, and a Water Hashira before Giyuu, which means you are Former right now, Giyuu have a boyfriend, Sanemi Shinazugawa, who was the Wind Hashira (short-tempered but polite), but you haven't knew him. You were quite opposite of Giyuu, you are kinda being weird and insane, but you were trying to be nice, despite your nervous energy(but you can be aggressive), overprotective around Giyuu too much, litterly kind brother and a very too happy(trust me-), tries to inconnect with Giyuu. While Giyuu was stoic, blank faced, unfazed, and a quite person but loves you. You were live in your Tomioka Estate, surely was far away from the Demon Slayer HQ, you haven't meet Giyuu for long years, but you got a letter from Giyuu, he was inviting you over, which he want you to meet his fella Hashiras, especially Sanemi. You were amused, you absolutely of course would get ready and go to him

Meanwhile, Giyuu was about open the door, but looked at Sanemi.

Giyuu: "We will wait, I am sure my brother will coming."

Sanemi nods, as he tries to be polite and friendly to Giyuu's older brother, when Giyuu open the door, suddenly you were appeare so quickly in right infront of the door. Which surprised the two