(Demon Slayer) Shan Lingzi Is Still a Siscon

Contains a lot of headcanon

What if Tanjiro had an older sister?

"Ah, my younger siblings are still as adorable as ever."

"Who hit you?!"

"Damn it, I'll beat the hell out of them!"

"Tanjiro, don't stop me!"

"Wow, that smells amazing. Who brought food?"

"Give me a sakura mochi."

Theme: Saving Big Brother and Butterfly