The episode begins in a bustling royal capital, where Fate Graphite, a young man with the seemingly useless ability "Gluttony," works as a gatekeeper. He is employed by the Vlerick family, which consists of the holy knights Rafale, Hado, and Memil, who treat him poorly. Fate also meets Lady Roxy Hart, another holy knight from the Hart family, who is kind-hearted and stands up for him when he is mistreated.

Fate's life takes a turn when he encounters a band of robbers. Lady Roxy entrusts him with guarding the gate to catch the criminals. Fate manages to defeat one of the thieves, and his Gluttony ability activates, granting him new skills and stats. He is fascinated by this sudden change but keeps it to himself.

Lady Roxy offers Fate a job in her household, which he accepts in hopes of a better future. He then visits a weapon shop, where he purchases a talking sword named Greed. The sword informs him that his Gluttony ability is one of those that violate divine law and should therefore be kept secret.

Fate decides to test his newly acquired skills by hunting goblins. His Greed ability activates multiple times, further improving his stats and adding new abilities. He also learns from Greed that his Gluttony ability allows him to steal stats and abilities from defeated enemies but grants him no experience points.

Toward the end of the episode, Fate encounters a man abducting a woman. Despite the risk, he decides to intervene. His "Gluttony" ability reactivates, and he prepares for the confrontation, marking the beginning of a new chapter in his life.

Throughout the episode, Fate evolves from an oppressed young man into someone with the power to change his destiny.