Someone is planting bombs all over Academy City, and it’s up to Judgment to stop the person responsible. Mikoto, wanting a piece of the action, uses Uiharu’s badge to investigate on her own.

In high spirits, Misaka joins the other girls for a day of shopping at Seventh Mist, where she helps the others with their shopping, as well. Misaka spends another day playing with children. One of Misaka's clones goes through the phases of her training.