History
Before Keith became the Red Paladin, he was an orphaned at a young age; the only enigmatic connection to his past that remained with Keith was a small blade inscribed with a strange glowing emblem that Keith kept wrapped up. At some undetermined point, Keith met Shiro, and eventually enlisted as a cadet of the Galaxy Garrison, becoming a classmate of Lance and possibly Hunk.
During his time as a cadet, Keith was considered to be the best pilot of his generation and Lance claims they had a rivalry, but the prodigal pilot was ultimately expelled from the Garrison due to "a discipline issue" according to Commander Iverson. He retreated to the desert to search for a purpose and consequently felt the energy emitted by the Blue Lion, leading him to remain there and investigate the surrounding caverns full of lion carvings.