Null & Peta

Null & Peta find themselves in a trippy multinational pro wrestling match! Can the sisters defeat their foreign alter-egos? Can any of the alternate Petas actually cook!? Will the ref ever put a stop to this chicanery!?!?

The story is set in a ruined future Nerima, where a photon energy disaster is said to have devastated the area. No one knows whether that is true or not, and details are hard to come by. All that is left is the photon research facility tower that stands as a monument at the center of the devastation. Z-chan and Gre-chan live together in the Shutter District, which spreads from the base of the tower. Their home is made from salvaged materials that they have named Photon House. The advanced photon energy that flowed through the place is now gone, and the world is now ruled by the Getter Rays that rain down from space. But even now, Z-chan and Gre-chan use the highly efficient photon energy to power their home.

When Ryunosuke's pet cat dies in an accident, his inventor father "resurrects" the cat by placing its brain in an android body made in the form of a young girl. The Android, Nukunuku, has the dual purposes of being a companion/sister for Ryunosuke as well as being a bodyguard for his father. Nukunuku's extreme strength and feline agility are regularly needed to protect Ryunosuke and his father from Ryunusuke's mother who seeks to kidnap them both following her divorce from his father. Her motives towards Ryunusuke are simple motherly love, however her genius-inventor-ex-husband she wants to put to work designing weapons of mass destruction for her weapons company.

In a Japan not quite like our own, the "youkai" (supernatural creatures) have started living together with humans. Now, in an ordinary school, all sorts of "monsters" attend regular classes. A human boy, Oohashi Shingo, finds himself attracted to one of these creatures, a "petopeto" called Fujimura Hatoko. Petoko, as she is called, is a minor monster, with only the power to stick to something she adores. Like Shingo....