A young man from deep in the mountains, Finn was a clerk of a big adventurer guild, but his incompetent boss and colleague banished him! Finn grieved over his lack of strength, but he returned to a small guild that was on the verge of going out of business for a living. However, no one in his former workplace knew about him.

In fact, Finn was a support magician for who was brought up by the evil god. He secretly prospered as a former guild. High-ranking adventurers who knew about his ability started to gather for him. 「 We are small, so we can only order a beginner's quest. We accept it as we say 」, and the number of customers increases by word of mouth.

This is a story of a young man who takes care of adventurers, troubled princesses, and aristocrats, and manages a guild with unconventional support magic. On the other hand, an incompetent big guild is going to decline.