"That look of enrapture, those slutty moans -- all of it. Give it all to me." Ibara Momomiya is a corporate drone who lives alone. Just as she's looking forward to a three-day weekend, on her way home from work she finds herself snatched away by the mysterious vampire, Iris. The venom from his fangs arouses her desire and she succumbs to pleasure and successive orgasms. Iris' skill at manipulation and Ibara's desire to please intertwine, and she gives up her body again and again... As three days and nights of pleasure come to an end, Ibara pursues hidden truth. What led Iris to steal her away...?