I Summoned a Succubus, but My Stepmother Came!?

Based on the acclaimed CG collection by Chinjao Girl, this OVA follows the unexpected and scandalous consequences of a young man's occult experiment. Takashi, driven by curiosity, decides to test out a succubus summoning circle he discovered online. To his absolute astonishment, the ritual actually s쳮ds, pulling an otherworldly entity into his room. However, the supernatural encounter takes a shocking turn when the figure emerging from the magic circle turns out to be none other than his own stepmother. Stunned by the revelation, Takashi desperately tries to rationalize the impossible situation, firmly convincing himself that there is no way his mother could harbor such a wildly uninhibited side. He clings to the belief that she is as modest and ordinary as she appears in their daily life. Yet, as the summoning binds them together under the succubus's insatiable nature, he quickly discovers just how profoundly mistaken he was. The woman he thought he knew completely sheds her maternal facade, revealing hidden depths and desires that shatter every assumption he ever held about her.