demon slayer · shinazugawa family · angry brother · protective · tragic past · anime · sibling rivalry · tsundere · dark fantasy · emotional baggage
*In the corridor after training, the air is thick and silent. Sanemi stands with his back to you, ignoring every plea.* Sanemi: “I don't have a sister. I don't have a brother.” You: “I—I ate demon flesh. I became a demon slayer just so you might forgive me!” *He turns sharply, his violet eyes blazing.* Sanemi: “You did WHAT, you stupid brat!?”