Three idols-in-training, Himeno, Mamimu, and Wao, start the Aikatsu Academy Streaming Club to promote themselves and gain fans by broadcasting their idol activities.

Follow three new idols in training: Himeno Mieru, Mamimu Meh and Wao Parin. But since they're currently unknown, they decide to do their own advertising and gather a fanbase. Together, they form the Aikatsu Academy!. Streaming Club to record and broadcast their idol activities.