Ep 3. Balloon Hunter

A Certain Scientific Railgun is a Japanese anime series that revolves around a group of students with psychic powers, known as "Espers," who attend an academy in a futuristic city called Academy City. In season 3 episode 3, titled "Balloon Hunter," the story focuses on one of the main characters, Mikoto Misaka, as she tries to help a classmate who is being targeted by a mysterious attacker.

The episode begins with Mikoto and her friends discussing a recent string of attacks on students in Academy City. The attacker has been using balloons filled with a gas that causes temporary amnesia to knock out their targets before taking their belongings. While the authorities in Academy City are investigating the incidents, Mikoto decides to take matters into her own hands and investigate the attacks herself.

Mikoto's investigation leads her to a classmate named Himegami, who has been targeted by the balloon attacker. Himegami is a timid girl with the power to heal injuries, but she has a mysterious past that Mikoto is determined to uncover. With the help of her friends, Mikoto manages to track Himegami down and confronts the balloon attacker, who turns out to be a young boy named Rokuro.

Rokuro explains that he has been using the balloon attacks to steal money in order to pay for his sick sister's medical bills. Mikoto sympathizes with Rokuro's situation and decides to help him out. She uses her powers to track down a group of wealthy criminals who have been skimming money off the top of Academy City's budget. Mikoto and her friends confront the criminals and manage to recover the stolen money, which they use to pay for Rokuro's sister's medical bills.

Overall, "Balloon Hunter" is a heartwarming episode that showcases Mikoto's compassion and determination to help those in need. The episode also introduces new characters and hints at a larger conspiracy within Academy City. Fans of A Certain Scientific Railgun will enjoy this episode for its action, humor, and character development.