This anime focuses on Kazama Mana, the main character of Yakin Byoto 2. She is an intern works for a sanatorium as an intern nurse. Mana looks up to Nightingale, and she want to be an angel in white like her. But, Mizukawa Wataru, the patient whose days are numbered, says to her that there’s no angel and begins to make her a sex game.

(Source: Anime News Network)