Demon Slayer: My Crazy Little Sister Survives by Drinking My Blood

A cold-blooded human brother vs. his dependent, demonified sister

Kamado Rin has a secret he must never reveal: he feeds his own blood to a demon.

She is his only remaining family, his porcelain-doll-beautiful little sister, Kamado Yukako. A mountain accident three years ago took their parents, but transformed the dying Yukako into a monster who drinks human blood.

The black-haired boy grips his Nichirin Blade and hunts demons in the darkness, then cuts open his own wrist beneath the moonlight.

“Your blood... it's the warmest, big brother.” Yukako curls up in his arms.

She has no human heartbeat, yet she remembers the prayers tied into every silver strand when she braided his hair.