Sachiko has only a short time left to live. Thinking of her husband Koji, who she will leave behind, she urges her subordinate Mika to join her. Mika refuses, saying that she would never lay a hand on her teacher's husband, but with Sachiko's skillful guidance, she ends up sleeping with Koji! Shaking off any guilt, the two lick each other's genitals with complete concentration. "Sachiko... is this really okay?" Mika asks herself, but her pussy can't hold back any longer and her love juices start to overflow...