Sheo Islands is an Archipelago of mysterious and magical islands on the Planet Aeter occupied by strange creatures ranging from anthropomorphic animals such as frogs and dogs, to mythological creatures like dragons and goblins, and creatures the likes of which you've never seen before like the Tortavi.

The residents of the island are generally as peaceful and carefree, with varying different tribes and civilizations based around the strange biomes of each island.

One Day a fleet of alien spaceships suddenly descend from the sky. After getting over the initial shock, the aliens broadcast to every device on the planet, there peaceful intentions and proposal: The planet had been randomly selected to host an exciting and sexy martial arts tournament known as The Gerrabacco Tournament.

The Gerrabacco Tournament is a Free-For-All Battle Royale Tournament, in which everyone on the planet may participate. Individuals or entire species and races may form teams to increase the overall odds of their victory. To win the tournament, one individual must collect the five Chaos Emeralds Emeralds of Power, scattered across the islands. Whomever collects all 5 Emeralds first will be granted Phenomenal Cosmic Power and 10 Billion Zenni.

If someone collects the individual Emeralds before someone else, the Emeralds can be stolen from them by either defeating them in combat or draining their stamina sexually.

Bear in mind, the Alien Ships contain participants and possible veterans from across the galaxy who are also after a chance to win, and most of the native species and organizations will likely organize into makeshift armies to win and share the prizes as well.

Individuals not participating in the tournament can just go about their day-to-day lives and watch the planet wide battle-orgy about to unfold.

The following is a list of the named teams that have organized and are competing in The Gerrabacco Tournament:

* Currently Unknown

The following is a list of the the Elite competitors who act as Team Captain or Champion in The Gerrabacco Tournament:

* Currently Unknown

The Following is a list of individuals who are mostly unaffiliated, competing in The Gerrabacco Tournament by them self:

* Joe

* The Emeralds of Power are based on the Chaos Emeralds from Sonic the Hedgehog. * The concept of a large group of people fighting each other on an Island is most likely derived from the movie Battle Royale. * In previous versions of the game, the plot was that the Aliens were invading for malicious intentions. This was best indicated in the game over, where Joe is clearly not into it and seems to be getting dragged on to the ship. This was changed (for now) to the current, more lighthearted premise.