A boy named Rikuto who has the unique skill of <>. He has used this skill to weaken monsters and lead his party to S-class rank. However, his party members do not understand the importance of the Reversal skill and banish him, saying that he has no magical power and his other stats are mediocre. Rikuto, who has been branded ``incompetent'', forms a party with those who were also called incompetent and was exiled, and takes on the challenge of subjugating the Demon King in order to reverse his reputation!