Yurina, a woman who is deeply in love with her non-blood-related brother, struggles with a lack of self-confidence and spends her days in a state of unease. One day, she is mysteriously whisked away to an unfamiliar place, guided by a seductive voice.
Confused and without warning, Yurina is attacked by a man, finding herself in a life-or-death situation. But just as all hope seems lost, a saving hand appears, accompanied by a brilliant light – a savior in the form of a ghostly succubus! The succubus, now inhabiting Yurina’s body, unleashes a relentless wave of sensual attacks. Ignoring the Yurina’s who became her vessel, she “counter-attacked” him and leaving him drained. Yurina wants to return to her world, longing for old daily life but instead she gets stuck with a succubus inside her body. In this world where succubi run rampant, what will become of Yurina?