Badge Demon Slayer Uzui Tengen

Bloodthirsty demons lurk in the woods, and nobody dares to venture out at night, save for the demon slayer of legend. Surviving in this harsh world, young Tanjirou takes it upon himself to protect his family–until the day that everything is taken from him in a vicious slaughter. Now, all he has left is his sister, and she’s not even human anymore.