A shy, bespectacled anime fan, this brother's love for 'moe' and 'oppai' is evident in his vast collection of manga. When his sister, a straight-laced 'JK' with a penchant for 'paizuri', stumbles upon his stash, she's appalled. Yet, as she watches him lose himself in the graphic stories, his 'kyonyuu' fantasies playing out in vivid detail, she feels an unfamiliar warmth between her legs. Envious of the pleasure he finds in his taboo world, she tentatively joins him, exploring the boundaries of their shared lust, one 'neechann' at a time.