The episode begins with a plan to infiltrate the cave of a human trafficking organization. Princess Pride, Prince Stale, and Chancellor Gilbert decide to go undercover, using Gilbert's ability to manipulate age as a disguise. They adopt new names: Pride becomes "Jeanne," Gilbert is "Gil," and Stale is "Philip."

Upon their arrival, they encounter Val, who is also undercover, and learn that the organization categorizes prisoners based on their special abilities into "mediocre" and "high-grade." Val is sent to rescue the high-grade prisoners, while Pride, Stale, and Gilbert focus on the mediocre ones. They find two children, Kemet and Sefec, who are friends of Val. Despite initial distrust, the children eventually believe they want to help them.

Meanwhile, Val successfully frees the high-grade prisoners and signals the others. Stale heads to a special cell and finds a boy named Powell, who was shunned due to his uncontrollable special ability. Stale assures him that things will change once Princess Pride becomes queen and convinces him to return home.

Back in the mediocre cell, Sefec reveals her powerful water-based special ability when the traffickers threaten them. At that moment, the royal knights, led by Artus, arrive to rescue the prisoners. A skirmish ensues, and the traffickers are ultimately overpowered. The episode concludes with a preview of the next installment, titled "The Merciless Princess and the Order."