The Ex-Janitor Who Was Expelled, Became Known As The "greatest Repairman" With His Exceptional Skills - Requests From Sss Rank Parties And Royalty Don't Stop Coming

Lyle has no combat skills, only his role as a "repairer". He is treated as incompetent in the party he belongs to, and the leader of the party banishes him from the party. Lyle is at his wit's end when a swordsman appears before him, asking him to repair an old sword...?