Fellowship of the Heavenly Lady Warm Ascension

天女の交わり ぬくもり昇天 (original title)

Synopsis

While Tatsuhiko is engaging in sexual acts in the room of Kyoko, the caretaker of his boarding house, he suddenly hears a loud explosion. Surprised, Tatsuhiko returns to his room to find a naked woman standing there in a see-through dress. She introduces herself as Shiratori Shiori and says she is Tatsuhiko's future lover. Then, suspicious people from another planet appear.