Thor is the main character of the anime Jyu Oh Sei.
Thor was raised on the space colony Juno. At the age of 12, Thor and his twin brother Rai find their parents dead in their home and are then abducted and sent to a remote planet in the Balkan Star System named Chimera. Shortly after arriving, Thor meets a boy named Zagi who teaches him the ways of the planet and how the only way to get off the planet is to become the "Beast King".
While exploring the planet, Thor is ambushed people from the Ochre Ring (one of the four colonies on the planet Chimera). He ends up killing a few of the attackers but is then sucked up by some of carnivorous plants on Chimera. Thor is rescued from death and is then taken to the Ochre Ring stronghold. When he arrives he meets Tiz, a 13 year old girl who is impressed by Thor's handiwork and demands that Thor be her husband, and a nonchalant man who goes only by the name " Third". The Third is the third in charge of the Ochre Ring following "The Second" and "The Top".
Thor lives in the colony for a while until one day he finds himself in a battle agaisnt The Top. With a little help from Third, Thor manages to win, thus making Thor the Top of the Orche Ring. This also puts Thor one step closer to becoming the Beast King.
Almost 4 years later, Thor has become one of the most beloved Tops ever by helping the Ochre Ring society become an actual civilization, rather than a place where food and water are scarce and death is commonplace.
After several more life threatening situations Thor finally becomes the Beast King. Being the Beast King, he is allowed to leave the planet and meet with Odin, the Prime Minster of Juno. There he demands answers to why his parents were killed and why he was sent to Chimera. After the shocking truths, Odin starts a program that will terraform the planet Chimera into something more hospitable. Knowing this will kill everyone on the planet, Thor rushes to stop it. After stopping the the planet from being terraformed, Odin agrees to let Thor and the rest of the people on Chimera live in peace.