An office lady, often abbreviated OL, is a female office worker in Japan who performs generally pink collar tasks such as serving tea and secretarial or clerical work. OLs are often unmarried.
One night, the protaganist's sister-in-law, Hamada Yui, returns home bringing along her friend Fukunaga Aoi. The two are drunk and create such a fuss that the protaganist is unable to study. He goes to complain to them, but they have other plans...
A powerful device falls in the hands of an institute student. He is ugly and despised by other students and female teachers alike. But with this mysterious cell phone he can induce an hypnotic state on whomever he takes a photo of and during that period of time, he can modify the will and body response the way he likes. Fun times are ahead for him, and he aims as high as he can - the head teacher and the student council members.
One day a couple of students wake up inside a wrecked school bus, then they discover that their city is in ruins and some people wanders with some weird looks. They found that there is a virus that makes people have insane sexual desire and they wont think on nothing else, and that virus is transmitted via sex so they must save their companions before they fall for that virus or even them will lose their will.