Academy City Fireworks Festival

The Academy City Fireworks Festival (花火大会) is a festival occurring in the early August, where Academy City displays various festivals for people to see. Like many festivals in Japan such as the, women wear as per tradition, while men are allowed to wear more casual clothes. Like other festivals, there are various stalls that sell an assortment of items, such as food (like candy apples and octopus balls), masks and other souvenirs; there are also stalls for games such as ball catching and ring tossing.

The main event however - is the fireworks displays, were it is customary to shout-out legendary firework merchants.

Poltergeist Arc
Haruue Erii saw a small advertisement of the festival after bumping into a glass window, and seeing her curiosity, Misaka Mikoto, Saten Ruiko, Shirai Kuroko and Uiharu Kazari all decided that they wanted to go to the festival with her. After a mishap with Uiharu and Erii's yukata, they finally arrived at the festival that is being held near a river. Here, they took part in various activities and ate a variety of food, and later saw MAR on guard for another Poltergeist incident, as the event had gathered a sizable crowd.

They later went to higher ground to watch and enjoy the fireworks being displayed, Erii however - wandered off from them and at the same time, a large scale poltergeist earthquake occurred in the area where they were. Erii and Uiharu were nearly injured by a falling lightpost, if not for the quick actions of Therestina, the commander of MAR. Despite the earthquake, the festival continued without much problems.