Bub was the first Genesis 1000 model to begin being produced, but he was not the first to be activated. His activation came when the humans needed something to bait the Queen, Lilith, into a trap to be killed. Bub accepted this mission, but quickly turned sides when he began to see that Lilith was not the monster that the humans portrayed her as. He quickly fell for her and wanted to protect her and help her be a better person, but the humans were just as swift to respond to his defiance. Instead of accepting Bub's argument that both sides were at fault, they remotely detonated his heart, killing him and leaving Lilith to yearn for his revival. This revival, unbeknownst to a lot of people, has been a wish granted.

The King is a very caring and compassionate person, though he is also committed to finishing tasks at hand. He is an advocate for doing what is morally right rather than what is demanded of him, and while this is the behavior that got him killed in the first place, he would still hold himself no other way. However, his revived self is much more calculating, focusing solely on being with Lilith once more. He is not afraid to lie and be charming and deceptive to achieve the goal of seeing his Queen again, and he will let nothing stand in his way.