In the world of Neverland, humans and monsters live alongside each other. Generation of Chaos details the start of the adventures of the two heroes of Neverland, Chiffon and Roze. Departure of Chiffon Chiffon is a boy with the power to train monsters. After realizing that his power is waning, he sets out to Hiyoko Forest to return his Hiyokomushi—a fish-like mount and companion—back to its homeland, the Hiyoko Forest. However, the journey there is anything but uneventful as his control over his monster gradually loosens. Roze's Decision Roze is of half-demon descent, living a quiet life among humans with her sister Emilia. One day, as Roze returns from work, she sees her house being set on fire.The destruction of her home shatters her dream of being able to live peacefully with humankind, as she is reminded that harmony between demons and humans is far from becoming a reality.

Once every century, the legendary mahjong dials called the "Legendary Pai" show themselves to the world, and if you collect them all it will grant you any wish. They show up in the form of evil monsters and you must defeat all 10 to obtain this chance. So, a Bunny Alien, A Maid-Dominatrix, A Cyborg, A girl form the world of magic and a transforming super hero all must fight these monsters along with themselves to grant the wish that they want to come true.

Pet shop owner's daughter Chika Tokorozawa spends every waking hour with her dog, Rin Tin Tin, who repays her love by watching over her while she sleeps. Based on the manga in Young Sunday magazine by Maki Otsubo, who is better known in the manga world for Mr. Cinema.

Prologue to the second game in the Generation of Chaos RPG series. Ellile is a knight-in-training in the Kingdom of Fredbarn in the Neverland World. He and Princess Roji are secretly in love, and plan to marry. Lifile, the head of the knights, finds out, and tells Ellile that he's not strong enough to protect Roji, let alone the Kingdom. Ellile becomes frustrated, and comtemplates what to do... During the OVA, there are a few animated shorts dealing with a fourth character, Poro, her robot friend, and the GOC Next cast.