Guild o Tsuihou Sareta Kaifuku Jutsushi, Jitsu wa Maryoku Mugen Nanode Kikaku Gai no Kaifuku Mahou de Densetsu to Naru

Synopsis

"No matter how far you go, you're ultimately just a chore boy!" An F-rank adventurer, Fool, who can only use the single-target recovery magic "Heal," was despised as the guild's chore boy and spent his days in misfortune. He dreamed of one day being taken on quests as a fully-fledged healer, but he is suddenly banished by Darren, the guild master and leader of an S-rank party. Fool was at a loss, but his encounter with the beastkin girl Cecilia will greatly change his destiny...?! Making full use of his infinite mana, Fool rises to become a first-rate healer alongside his trusted companions! https://www.cmoa.jp/title/319586/