Rikuto is a boy with a unique skill called ≪Reversal≫. He used this skill to weaken monsters and lead his party to S rank. However, his party mates do not understand the importance of the <Reversal> skill, and banish him as "no magic power and other stats are mediocre". Rikuto, who was branded as "incompetent", formed a party with those who were also called incompetent and banished to reverse his evaluation, and challenged the demon king subjugation!