The literal Swordsman Saber

An inhabitant of a random timeline who got caught up in a time thief battle and was irreparably damaged. To save his life, the time patroller who was fighting the time thief took him back to the time patrol to be healed. This was during a time where the time thieves were more active in the multiverse, causing a shortage of Time Patrollers. Because of this, the time queen instated a law where certain life saving operations would be done by the Time Patroller's scientist, so they could add enhancements. The cost for this payment would be that the patient must fight for the time patrol.

In Saber's case, his body was granted the ability to become sharp as a sword. However this was done without Saber's knowledge or consent. Unable to refuse the time patrol's requests for missions he was forced to become a time patroller. After meeting the high level time patroller, Ozymandias, he became part of a two member team with Ozy as the mentor, both having the goal of changing the time patrol from the inside. Because of this incident he values freedom and choice above all else

Possible romance with June but Idk how to write those and it doesn't come up in Arcs I've thought out. Maybe in Arcs close to finale