In a world where upon turning 18, individuals are granted a "class" by the gods. The presence or absence of "skills" within the class surpasses any efforts and determines one's entire future. In this unequal world, Reit, who has trained to become a holy knight, is mercilessly given the class of during the classification process. He is then banished from the city by his father, the Duke. Struggling to make ends meet as a porter, one day, a merchant caravan is attacked by bandits. Though he fights to save a child, realizing he cannot match the combat skills of the enemy, Reit prepares for death. However, in the moment he lands a punch on one of the bandits as a last act of resistance, a mysterious voice resonates in his head...