Mitsugu Banba is a high‑school student who discovers purpose in giving blood. She goes to the donation center regularly, even though a nurse treats her with cruelty. One day she meets an alluring foreign‑looking girl at the clinic. The pale stranger seems on the verge of fainting, yet suddenly she begins to wreak havoc in the blood bank. The girl loses consciousness, and Mitsugu brings her home, carrying her to his apartment.
