Yuusha Party wo Tsuihou Sareta 【Skill Supporter】 Nakama no Sukiru wo Kaihou Shite Saikyou ni Nariagaru is a Manga/Manhwa/Manhua in english language, Action series, english chapters have been translated and you can read them here. You are reading chapters on www.mgeko.cc fastest updating comic site. The Summary is

“Ars! You’re fired!” Ars’s job is a [Skill Supporter] who can unlock skills regardless of conditions. He has contributed as a member of the hero’s party, but the hero Leon banishes Ars because he has unlocked all of his own skills. Although Ars is depressed, he decides to continue his long-held dream of becoming an adventurer. Then, during a quest, he is reunited with his former student Alicia, and realizes that the [Skill Supporter] can be used not only by his companions but also by himself, and his ability blossoms… The story of a hero in another world who unlocks his own and his companions’ skills and becomes the strongest begins!