Cara to Otamajakushi Shima

Shimajiro a tiger boy, Mimirin a rabbit girl, Torippii a parrot boy, Ramurin a sheep girl has an adventure in challenge island where they live.

The anime takes place in Alicepia, which is a mysterious country that has existed since ancient times. The inhabitants of Alicepia, the Alicepians, are a fun-loving people, but one day mysterious monsters called Jamaock appeared to threaten the peace of Alicepia. The story follows a trio of "princesses" who never forget the song in their hearts, even when facing such danger and step up to save the day with the power of music.

Based on a series of Chiikawa comics posted on X by Nagano from March to November 2023, known as the "Siren Arc" . One day, while Chiikawa and Hachiware were relaxing in the square, Usagi suddenly appeared with a flyer stuck to its face. When Hachiware checked the flyer, it was an invitation reading “Special Invitation to a Special Island.” Lured by promises like “Get 100x rewards for simple island quests!” and “Limited-edition island ramen, exclusive sweets—sweet and spicy treats all practically free!”, Chiikawa and the others decided to go on the island retreat. Boarding the ship alongside Rakko, who was suspicious of the flyer's contents, the group landed on the island... only to find something waiting for them there...!?

The story centers on the cats Hopi, Toto, and Mao, who set out on the ocean in search of a place to establish a new town. The three friends plan to find the mysterious "Island of Stars." When they happen to chance upon it, they immediately get to work developing the island, but encounter many difficulties in their task.