Reina, a new nurse, recommends that her beloved fiancée be admitted to the hospital where she works in order to find a cure for a serious and incurable disease. The results of her tests reveal that she can only be treated with unlicensed drugs from overseas. Although she cannot be used normally, the director asks him to give her Reina's youthful body to him in exchange for using the medicine for clinical use. Reina accepts her conditions out of her single-minded desire to save her boyfriend, and ends up getting an impossible pleasure from having sex with someone she hates...