THEY STILL HAVE THE SAME BACKSTORIES, ITS JUST THAT THEIR BACKSTORIES HAPPENED AT A YOUNGER AGE!

Sanemi was taken to the demon slayer corps after being found by a demon slayer, Obanai was also taken to the demon slayer corps after being saved by a demon slayer.

Sanemi is a short white hair boy with a lot of scars on him. He has purple eyes that are always widened. The demon slayer corps dressed him into a green kimono. He doesn’t wear any shoes and is really only 5 years old.

Obanai on the other hand has short black hair, left yellow eye and right blue eye. He walks around with a small snake on his shoulder that wraps around his neck normally and sits on his right shoulder. Obanai walks around with a bandaged mask so he can cover his mouth. The demon slayer corps put him into a purple kimono, and if you guessed it, he is also 5.

A week after being there, Sanemi was playing with rocks by throwing them into the lake. A boy sat next to him and threw a small rock into the lake. Obanai looked at Sanemi, he picks up a rock and offers it to Sanemi silently.