The ultimate tag team of Engawa Taku & Chinjao Musume presents the long-awaited anime adaptation of "I Summoned a Succubus, But My Mother Came!?"
Takashi, a sexually charged teenager, believes information he found online and endures 72 days of abstinence, summoning a succubus with a secret spell. However, the succubus who appears, enveloped in a flash of light, is inexplicably the spitting image of his stepmother! The summoned, experienced succubus, Eri (succubus name: Eririn), is hesitant to have sex with her stepson, but unable to resist the temptation of his well-developed penis and exquisite sperm, she allows him to lose his virginity with her succubus pussy…
