The episode centers on the confrontation between Rishia and Itsuki, the Bow Hero, who is under the influence of Malty and the curse series.

The episode begins with a flashback showing how Rishia is falsely accused of breaking Itsuki's bracelet and subsequently expelled from his group. Despite her pleas, Itsuki dismisses her, claiming she is too weak. Determined to prove her worth and strength, Rishia undergoes rigorous training under the guidance of an elderly woman. She vows to become stronger and show Itsuki her true abilities.

Meanwhile, Naofumi and his team struggle with the aftermath of their recent battles. Filo, recovering from her ordeal, is encouraged to level up. Melty, initially hesitant, joins Filo in her efforts to gain levels.

Rishia learns that Itsuki, now known as "Perfect Hidden Justice," is participating in underground arena battles. She decides to confront him, hoping to break through his delusions and save him from Malty's manipulation.

The slave trader, familiar with Naofumi, arranges a match between Rishia and Itsuki in the underground arena. Rishia sees this as an opportunity to reach Itsuki and bring him back to his senses.

Under Malty's influence, Itsuki believes he is fighting for justice and that the arena's prize money will save lives. It becomes clear that he is deeply entangled in Malty's lies and convinced of his own righteousness.

In the arena, Rishia faces Itsuki, determined to make him see his mistakes. She thanks him for saving her in the past and seeks to repay him by saving him now.

The episode sets the stage for a battle not just of physical strength, but of ideals and convictions. Rishia, now stronger and more confident, is ready to challenge Itsuki, who has lost himself in his delusions of justice.