The Man-Killer Virus: a lethal disease that has eradicated 99.9% of the world's male population. Mizuhara Reito has been in cryogenic sleep for the past five years, leaving behind Tachibana Erisa, the girl of his dreams. When Reito awakens from the deep freeze, he emerges into a sex-crazed new world where he himself is the planet's most precious resource. Reito and four other male studs are given lives of luxury and one simple mission: repopulate the world by impregnating as many women as possible! All Reito wants, however, is to find his beloved Erisa who went missing three years ago. Can Reito resist temptation and find his one true love?

A young boy named Rentaro and other ninja apprentices attend Ninjutsu Gakuen - a top ninja academy. Rentaro is determined to become an elite ninja!

Developed from Japanium ore is the super energy, Photon Power. Seeking this energy is Dr. Hell, a madman craving world domination who along with his subordinates Baron Ashura and Count Brocken, commands the Machine Beasts excavated from Bardos Island (believed to be Rhodes) to attack the Photon Power Lab and take it for himself. Meeting the attack head on is our hero, the hot-blooded teenager Kouji Kabuto who pilots the super robot Mazinger Z, constructed by his grandfather Juzo and made from the strongest metal Chogokin Z. But in this battle between Dr. Hell and the Kabuto family, many legends surrounding the Mycenaean Civilization and Bardos Island, as well as the secrets of Mazinger Z remain shrouded in mystery.

Manji is a crass, violent samurai with a special ability: he cannot die. Cursed with immortality by the nun Yobikuni as punishment for his ruthless deeds, he has grown weary of his ageless life. The only way to lift the curse is to slay 1,000 evil men. So Manji wanders Japan, shedding the blood of the wicked on his quest to finally die.

Kintarō Yajima used to be the leader of a feared and respected biker gang, but out of respect for his late wife he chooses to straighten himself out and work as a salaryman so that he can support his son.

To get the money to pay for a doctor for his father, Romeo bravely sells himself as a chimney sweep. On the way to Milan he meets Alfredo, a mysterious boy on the run heading to the same fate. Upon being separated and sold to their new bosses, the two boys swear eternal friendship. Romeo has to learn the hardships of a chimney sweep's job.

Rantarō, Shinbei and Kirimaru are ninja apprentices in the Ninja Gakuen, where first grade ones are called "Nintamas". They must learn everything a ninja must know, but as for our heroes, money, food or playing are more interesting. The series show the everyday adventures of our heroes.

It began centuries ago, when the Miroku ninja clan made a deal with the forces of the underworld, leading to centuries of struggle between rival clans. And now, after more than 600 years of peace, the denizens of the underworld are about to get a new boss. Now, 18-year-old ninja in training Midou Miko is entrusted with the family business: making sure that sex-starved demons stay out of humanity's way! What does a ninja do? Fight, with every battle skill and sexual sorcery she can muster!