"The lives of all humanity rest in your hands. A small sacrifice from you will save everyone."
All that can stop the Lust Virus is Makoto's "perfect antibodies." Lulled by Izumi's sweet words, she succumbs to humiliating human experimentation. As she puts her body on the line for her bosom friend Hina, she trembles in shame... But Izumi's demands only escalate. Just as Makoto is about to become a feast for the beasts, the last person she would have expected appears...?!