Segua Kingdom has been losing the war against Ninterdo Empire but the tables are turned by the appearance of a boy called Gear. All the characters are parodies of Nintendo or Sega games such as Sonic the Hedgehog, Super Mario Bros., The Legend of Zelda etc.

Ever since the 10th NOVA clash, the Chevalier had concluded that the NOVA have been appearing at a steadier rate and they are losing more Pandoras than they can produce. Their solution is the E-Pandora Project which involves normal humans being given the power to become Pandoras. Inviting Pandora from around the world to their Alaskan base witness the unveiling of their new project, Satellizer, Kazuya and Rana are among those who have been summoned. However, as time goes the E-Pandora Project starts to become fishier and the Pandoras start to grow more and more concerned...

Decades into the future, humanity is under siege by an alien race known as the Novas. These inhuman beings leave devastation in their wake whenever they appear, with the efforts to stave them off becoming known as Nova Clashes. Young women known as Pandoras and young men known as Limiters are implanted with stigmata to give them superhuman powers and are trained in military academies, where they must learn to work together if humanity is to have a chance of surviving. Freezing tells the story of Kazuya Aoi as he sets out for his first day at the West Genetics military academy, right when a battle royale is being undertaken by the Pandoras. It is here that he mistakes Satellizer el Bridget—a powerful Pandora known as the Untouchable Queen—as his deceased sister and embraces her. Though he costs her the match, she finds that his touch doesn't drive her away and decides to take him as her Limiter. The only question is whether or not their partnership can survive the machinations of their upperclassmen and the impending battle with the Novas…

When it comes to the fantasy MMORPG Cross Reverie, none can match the power of the Demon King Diablo. Possessing the game's rarest artifacts and an unrivaled player level, he overpowers all foolish enough to confront him. But despite his fearsome reputation, Diablo's true identity is Takuma Sakamoto, a shut-in gamer devoid of any social skills. Defeating hopeless challengers day by day, Takuma cares about nothing else but his virtual life—that is, until a summoning spell suddenly transports him to another world where he has Diablo's appearance! In this new world resembling his favorite game, Takuma is greeted by the two girls who summoned him: Rem Galeu, a petite Pantherian adventurer, and Shera L. Greenwood, a busty Elf summoner. They perform an Enslavement Ritual in an attempt to subjugate him, but the spell backfires and causes them to become his slaves instead. With the situation now becoming more awkward than ever, Takuma decides to accompany the girls in finding a way to unbind their contract while learning to adapt to his new existence as the menacing Demon King.