Mariko, a sexy mature woman, is a former actress, but now she's retired and works as an importer of fashion magazines. She is still single and two years ago she adopted Yuri, an aspiring model. Mariko trains her girlfriend Yuri to become her top model, and fearing that sex will ruin her figure, she trains her to be a lesbian. Yuri, who did not know her man, surrendered to Mariko's caress, and she drowned in lesbian ecstasy. One day, when Mariko came to work, she received a phone call from Yoshida. Mariko is trapped by her and becomes this man's mistress. No matter how strong Mariko tried to be now, when she was held, she turned into a bitch...