Ep. 1: Kukuru struggles to save the aquarium while Fuuka arrives in Okinawa and witnesses a strange event.

Kukuru Misakino is a high school student and acting director of the Gama Gama Aquarium, a place she loves for its sea creatures. With the aquarium facing closure, she works diligently during the summer break to protect it. Meanwhile, former idol Fuuka Miyazawa arrives in Okinawa without a clear destination. She is guided to the aquarium by Karin Kudaka, a tourist association member who happens to be passing by. Upon arriving, Fuuka encounters a strange occurrence in front of the building. Witnessing this, Kukuru approaches her and asks if she saw what just happened. The episode highlights the contrasting situations of both girls as their paths intersect at the struggling aquarium in Okinawa.

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