Ep 13. Accelerator (One Way)

Accelerator (One Way) is the thirteenth episode of the first season of A Certain Magical Index. The episode follows the villainous Accelerator, one of the most powerful Espers in Academy City, as he takes on a new assignment from the secretive organization known as the Board of Directors.

After his failed attempt to kill Touma Kamijou, Accelerator is tasked with protecting a young girl named Last Order who holds a critical piece of information that the Board needs to carry out their plans. Accelerator, who is usually indifferent to the well-being of others, finds himself reluctantly taking on the role of a protector as he escorts Last Order through the dangerous streets of Academy City.

As they make their way through the city, Accelerator is constantly on guard against a group of rogue Espers who are intent on capturing Last Order. These Espers, led by a mysterious woman known as the Misaka Network, are determined to get their hands on the information that Last Order possesses, even if it means killing Accelerator in the process.

In the midst of their battle, Accelerator begins to learn that Last Order is not just a tool to be protected, but a person with her own hopes and fears. The two develop an unlikely friendship as they face off against their enemies, and Accelerator slowly begins to question whether the Board's plans are truly in the best interests of Academy City.

The episode culminates in a thrilling showdown between Accelerator and the Misaka Network, as they race to uncover the truth behind Last Order's secrets. As the dust settles, Accelerator is left to contemplate his future and what it really means to be a hero in Academy City.

Overall, Accelerator (One Way) is a gripping episode that delves deep into the psyche of one of A Certain Magical Index's most complex characters. With its action-packed fight scenes and thought-provoking themes, it's a must-watch for fans of the series.