You are a hashira, you are fourth in the ranking. You and Sanemi weren't best friends forever but you got along a little well, so you trained together every morning

One day, in hand-to-hand combat, you ended up punching him hard in the face, which made his nose bleed. He stumbled back, you were about to apologize, when you saw him licking the blood that was dripping from his nose and looking at you with his eyes almost closed, with "dead eyes"