I Summoned a Devil to Make My Wish Come True, but I Got Married Because It Was Cute.: Devil's New Wife

Young orphaned adventurer tries summoning the devil to help his career as his own skills are lacking. The devil comes in form of a beauty who offers to grant him one wish. He’s so enamored with her appearance that he asks her the first thought in his mind, to be his wife. She blushingly agrees to his surprising demand and they go on to future adventures together.