Party kara Tsuihou sareta Sono Chiyushi, Jitsu wa Saikyou ni Tsuki

The story follows Raust, a healer who can only use one basic spell and is expelled from a first-class party for being too weak. While the leader of that party realizes how great his abilities actually are after hiring another healer, Raust finds new friends like Narsena who support him and his rise to the top.