``The taste you had back then...it was delicious...'' Airi, who ends up living with her fiancée, learns that the man who raped her in the past is her fiancée's brother. Airi, who was drugged and raped, moves away to escape, but she can't stop shaking with fear at the unexpected reunion. A trash brother-in-law approaches Airi who is upset. It's a fateful reunion. I never expected my sex pet to be my sister-in-law.