Iona

A strange virus turns 90% of the world population into Lust eating Zombies. However, in Akihabara, Japan, some males were found to be uninfected. These men team up with the Zombies to go after the flesh and blood of surviving young women to fill their lust. The women survivors must fight to survive in an apocalyptic Japan.

Convinced of the final outcome, a team of scientists travels back in time to stop the spread of a virus turning men into zombified rapists through society and causes them to finally uncover the source of the deadly disease which causes them to attempt to stop it before it happens again.

In a devastated, post-apocalyptic world, all men have turned into rape demons. The only hope for the future is to travel to the past and prevent the outbreak, the source of which still remains a mystery.

The zombies that arose after the nuclear outbreak are still high in numbers. The group of girls have lost some of their comrades and are fighting off the horny zombies to stay alive themselves. Can they stop the plague for once and for all?

Year 201X. Japan has achieved economic revitalization due to the legalization of betting authorized by the government due to the enforcement of the betting regulations. A gambling vocational school (commonly known as Tobasen) was established to train specialists so that they can compete with other countries even in gambling. Only the gambling arm can climb. Meanwhile, Mizuho and four female students are gathered in the classroom. They were some of the most problematic children in Tobasen. Then, the teacher tells me the startling test contents. If he wins, he will graduate as a gambling specialist. However, if he lost, he was stripped of all his clothes, and he was a mahjong undressing, breaking the rules that death sanctions were waiting.

Rie and Keiichi, former colleagues and lovers, continue to meet secretly at love hotels even after Rie's marriage. Saeko Inui, the woman who captures the entire affair on her digital camera and IC recorder, has two faces: outwardly as a secretary at a law firm, and secretly as a detective-like investigator...

Two weeks ago, Yukino's husband suddenly passed away while on a business trip, leaving her a widow. While sorting through his belongings, she found a promissory note from several decades ago. Following the address written on it, Yukino arrived at a guesthouse. It turned out to be a guesthouse run single-handedly by her husband's former classmate, Miwa.

Ninja samurai Onimanji, who has been sealed in a cursed urn for 631 years and 59 days, is resurrected in the modern era by the assassin-for-hire company, Kika Company. The odd team of Kika, Shigeru, a bumbling assassin, and Onimanjii perform a series of dark jobs and must still compete with rival company Nutmeg.