Ep 6. Super-espers

As per the given prompt, the description for the show A Certain Magical Index season 3 episode 6 is:

In this episode of A Certain Magical Index, titled "Super-espers," the audience is introduced to an exotic city, Baggage City, which is being guarded by a squadron of Soldiers to maintain order. It is a city that provides services to those who are ostracized from the regular world, giving them a chance to live a peaceful and fulfilling life. However, it is not the case for everyone. There are still people who are discriminated against and are not provided with the opportunities that they deserve.

For one, there is a ten-year-old girl, Shiage Hamazura, who lives in the city with her mother and older sister. Shiage is an esper who possesses incredible abilities, but due to the circumstances of her existence, she is forced to live a modest life. After returning home from running errands, she witnesses an altercation between a group of espers and the Soldiers, and she intervenes to stop the situation from escalating.

Shortly after, Shiage is approached by a civilian who identifies himself as a member of the "underground." He informs Shiage of an organization that can provide her with an opportunity to escape the city and live a life free of discrimination. She agrees, and the man hands her a bracelet to wear, which he tells her will protect her from the Soldier's Esper surveillance.

Meanwhile, Index and Mikoto have returned to the Amakusa Church, where they stay while Index recovers from her previous battle with the dark side of the church. During this stay, Mikoto receives a text message from Shiage requesting her help because a group of espers is after her. The two girls travel to Baggage City and meet Shiage, who explains her situation to them.

The situation is worsened by the fact that the organization that Shiage joined is not all that they presented themselves to be. They have been stealing esper abilities and selling them to the highest bidder, including terrorists. The trio decides to confront the organization, eventually learning that the leader of the organization is none other than Shiage's sister.

As they try to confront the enemies, shit hits the fan, and things become uncontrollable. Soon, it is revealed that Shiage possesses one of the rarest esper abilities: the capability to take away abilities from other espers. This is when the episode gets intense with a lot of action and fighting scenes. Everything comes to a climax where all the "secrets" are revealed, and the story takes a drastic turn.

This episode of A Certain Magical Index season 3 is full of tension, impressive action scenes and stimulating revelations that will keep viewers engaged and invested. The show builds on its previous world-building lore while still managing to infuse fresh and new ideas while also setting up plot points that could influence the overall story arc of the season. The events of this episode are sure to have an impact on the rest of the season.