"In this world, Skills determine your future". Yota is a support mage with only one support skill that is widely unpopular. In a profession where it was difficult to raise your level, Yota even was slower than the others. As a result, the difference in his ability and his friends gradually widens, and finally, the leader, Laguiole, expels him from the party. But what they didn't know was That Yota's skill wasn't just support magic. It was the one and only strongest skill... This is the success story of one support mage who was unlucky.