A Certain Band's Sports Festival☆/Event Story

Trivia

 * As this event is a collaboration between BanG Dream! Girls Band Party and Toaru Kagaku no Railgun T, there are numerous references to Toaru Kagaku no Railgun in the event story and card stories. They include:
 * The event story takes place during a joint sports festival between different high schools, identically to the Daihasei Festival Arc.
 * In Rimi's Card Story, Saaya and Rimi are going through the lost items in the Sports Festival's committee room. They end up finding a frog mask, a hair accessory made out of flowers, futuristic goggles, and a remote.