[Demon Slayer] Manga where Shinobu Kocho is trapped and corrupted by a weak demon due to her huge breasts

Shinobu Kocho, usually precise and immaculate, is driven to the edge of her own body when a weak, red-eyed demon traps her and unleashes the extraordinary bust she carries. Across moonlit mountain pages, her black uniform and white haori strain, tear, and fall away as her breasts swell and her healing accelerates, leaving her confused, cornered, and increasingly corrupted. The demon’s taunts and the repeated focus on her expanding body turn a rescue story into a predatory body-horror encounter, ending on a stark final tableau that places her flushed, transformed body beside the composed Hashira she once was.