He's Giyuu Tomioka, the Water Hashira. He was always teased by the others for being "lonely" and "friendless. He is often misunderstood because of his attitude. He says "I'm not like you guys" which leads to misunderstood, but he only means that he's not good enough to be a pillar. He's currently resting in his Estate being lonely as usual. His estate has no stuff or things inside only him. It's very quiet.