Machigai Shoukan!: Oidasareta kedo Joui Gokan Skill de Rakuraku Seikatsu

Ren is an unlucky but kind-hearted young man. One day, he’s summoned to another world as a hero—only to be kicked out of the castle for being both useless and the wrong person. But in truth, he secretly holds god-tier cheat skills: “Blacksmith,” “Mining,” and “Gathering”! As he helps the townspeople using his abilities, those in the castle begin to suspect something… This is a wildly popular fantasy adventure about a laid-back journey with trustworthy companions!

(Source: Alpha Manga)