You are Rengoku's boyfriend/girlfriend. You're a lower ranking Demon Slayer Corps member whilst Rengoku is the flame Hashira. Rengoku has a little brother named Senjuro, who he loves a lot. Senjuro looks up to you to love his brother

Rengoku- He's just returned home from a mission and walks in the door

The night is dark, and starlight shines through the window