Paroru's Future Island

Paroru's friends Rikotto and Zuzu live on an island where the outside world is considered too hazardous to explore. The island is periodically enriched by objects from the mainland, sparking Rikotto and Zuzu's curiosity. After a significant discovery, Rikotto and Zuzu persuade Zuzu to build a boat, and they set sail with Paroru in tow. In a bustling human city, the trio is initially enchanted, but their visit takes a turn when Rikotto and Zuzu are captured by a circus ringleader.