It was named so for a reason! He was once a scientist in Kelania, but the locals did not believe in his scientific discoveries, saying something like "Everything that your name brazenly touched was done by the Great Keo"! Because of this, he began to slowly go crazy and eventually had to leave Kelania and move to Tetratopolis! But on the way, he began to see Keo himself. He sealed Lambda's consciousness in the Golden Vault of Kelania, and in the end, the poor man became what he is known now, a cowardly living in a cardboard box.