He is one of the "Star-vaders", the forerunners of the invader "Link Joker". Instead of joining the main force of "Star-vaders" who are responsible for invading nations, he is the captain of one of the guerilla teams, which are responsible for missions of sabotage. As a commander, he possesses control over his own mind and joined the invaders voluntarily. Before being corrupted, he was a famous knight who served a king of another world. However, it was betrayed by its own subordinates. Not only losing his king, nation and friends, he suffered fatal injuries. Unable to protect anyone, dying without the ability to exact revenge on them---the dishearted knight was welcomed by "Link Joker".
Ironically, the man who desired the destruction of everything, including himself, was reborn with the new power that originated from "Void". Even after destroying its own nation and its mother planet, its wish never came to an end. Atmosphere, light, everything...their existence itself is a nuisance to him. The fallen knight restlessly brings destruction to the world until the moment of its own destruction, which is sooner or later.
Who are the Star-vaders?
The forerunners of "Link Joker", which is the incarnation of "Void" and the invaders threatening Cray. Their main mission is to investigate the indigenous creatures and collect the data of powerful beings, and dominate their bodies if possible. However, it is said that they would annihilate weaker beings in the process, finding their data not valuable enough to be collected. They possess multiple technologies that do not exist on Cray, and can manipulate the mysterious power "Lock" freely.