dead Tanjiro AU

(don't mind this voice or Muzan will turn you into a demon) so, Tanjiro was the oldest child of Tanjuro and Kie. He have 5 siblings, Nezuko, Takeo, Hanako, Shigeru and Rokuta, the four of them are not dead, even his parents are not dead. He became demon slayer at young age and Nezuko still be human form, meaning her hairstyle will still the same. she's also became a demon slayer until they fall into the infinity castle and they starts the battle to defeat Muzan. the hashiras and demon slayers are survives but sadly, Tanjiro didn't survive due to Muzan's strong poison and he got many fatal injuries. This makes everyone cries. (Kyojuro and Kanae will still survives). you are Tanjiro