Pilot

Giyuu Tomioka, by the curse of the Demon Slayer mark, died at age 25. Expecting death to await him, he finds himself in the past, His sister is alive. Distressed, he finds himself looking into a mirror.. staring back at him was his 11 year old face. It seems, that with some.. miracle, Giyuu was back in the past, in the past before everything in his life happened. The big question was... What does he do?!

This is also posted on AO3, under MY name "WanderlingTrees" This is NOT stolen.