Nanami learns her father's address for the first time upon the death of her only living relative—her mother. Visiting him with faint hope, she is warmly welcomed. However, he is an unsuccessful erotic novelist whose eyes leer at young girls in perverse fascination. Forced to live together, they gradually develop a relationship driven purely by primal instincts. The father fantasizes about seducing the greengrocer who interacts with his daughter, while Nanami herself imagines being dominated and tortured by her father in BDSM play. Their twisted affection grows increasingly sexual, eventually transforming their bond into something entirely new.