The Exiled Former Errand Boy Is Now Known as the Greatest Repairman Through His Extraordinary Skills: Requests from SSS-Rank Parties and Royalty Keep 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...?