Dismissed from the Hero's Party
Aiga James spent years as the hero's party trainer, using a skill everyone considered support-class and unremarkable. When the party decides they no longer need him he is retired with a small fief in the countryside. He starts applying his Training skill to the land, the people, and everything around him. It turns out Training works on more than just fighters. Japanese manga by Takahashi Yoshiyuki. Ongoing.
Read I Was Dismissed from the Hero's Party Because They Don't Need My Training Skills manga in English, updated regularly. Also known as: 勇者パーティーを追放されたけど、俺には訓練スキルがあるから辺境でのんびり暮らします · Yuusha Party wo Tsuihou Sareta kedo Ore ni wa Kunren Skill ga Aru kara Henkyou de Nonbiri Kurashimasu · Dismissed from the Hero's Party · Training Skill Slow Life