Sergeant Keroro and his four subordinates came from the planet Keron to the Earth to conquer. However, without notice, they began to enjoy the life on the Earth. Keroro was supposed to stay with Hitana to get the chance to conquer the Earth, but he became friend with Hinata's son, Fuyuki. Today, as usual, Keroro goes to buy his favorite Gundam plastic model with Fuyuki. On their way home, they find a small shrine, and enter. There, they find a vase, and happens to break it. Since the next day, strange things happen all over the town and people are in panic. Inside the vase, Kiruru, Keron's ancient ultimate weapon was sealed. At the moment, Mirara who holds the secret of the Kiruru appears and informs them of the only method to save the Earth. However...
Yaji and Kita are two men who live in Edo. They are deeply in love. Yaji is married to a woman, while Kita is an actor addicted to various drugs.
Hitori Gekidan gets off a crew bus, assuming he will participate in a travel program. He overhears people in the monitoring room announce the beginning of the "24 Hour Kiss Pressure Game." He is then assaulted by attractive actresses pleading for a kiss as well as deadly mercenaries and zombies attempting to kidnap him. Soon he grasps his character and situation. He is Shogo Kawashima aka The Desert Reaper and he is on the run with Aoi Tsukasa (Aoi Tsukasa). For unknown reasons, the Red Shadow, who raised him, wants him back.
A peculiar girl transforms into a cat to catch her crush's attention. But before she realizes it, the line between human and animal starts to blur.
Doi of the Maeda Construction Company's Advertising group has little passion for his work. One day the group's leader Asagawa declares, "Let's build the hangar for Mazinger Z!" Having been dragged in by Asagawa, Doi and his co-workers commence putting on appearances of having taken on this request from a fantasy world.