Mc isekai, mc was in some army i think. Mc becomes a healer but mc also fights like with his fist i think. That was how mc was taught how to fight by mc teacher, the teaxher said that a healer has to fight on the battlefield also i think. Mc was with 2 other friends i think. Mc was taught how to fight physically so that in the battlefield healers are not a burden (?). Thats all that i can remember and some just pieces of memory of it. Please help me find the title, thank you