A new Roidmude, Angel, appears, granting full human emotions to Chase. Chase, now possessing the emotions he wanted to feel, attempts to integrate into humanity, but becomes uncertain when he realizes the dangers of what the Angel Roidmude is doing. Chase must decide between Justice and the emotions he always wanted, with the lives of those around him at stake.

Tsuruta, a single Tokyo Metropolitan Government employee, has a hobby of groping. One day, a woman, suddenly leaves him a note and leaves. The note reads, "Professional groper, please contact me immediately." Suspecting that this is a sting operation, Tsuruta does not contact her, and the woman, Eiko, begins to tail him, and Tsuruta is finally caught by her. Eiko asks Tsuruta to cooperate with a study on "sexual crimes and culture" being carried out by Seiichi, the heir to a wealthy family whom he has served for generations. Seiichi, who wants to learn about groping philosophy, follows Tsuruta onto the train. Eventually, he improves his skills as a molester, while Tsuruta is attracted to Eiko. However, Seiichi's actions escalate in a bad direction...

In the near future, the earth is devoid of women due to a virus that will lead to the extinction of the human race. In the meantime, a murder occurs at a research institute that was developing a vaccine. Kiriyama of the Public Security Bureau goes to the scene and finds that the murderer is his colleague Kaneshiro. He had already been infected with some kind of virus...