The Chiikawa franchise, created by Nagano, has captured hearts with its beloved manga and anime. Its charming cast of characters and one-of-a-kind atmosphere continue to captivate fans far and wide, and with the first theatrical anime film, Chiikawa: The Secret of Mermaid Island, set to open on July 24th, 2026, excitement is only growing.

On pixiv, fans have been dreaming up crossover works that bring Chiikawa, Hachiware, Usagi, and the rest of the gang face-to-face with characters from entirely different worlds.

Discover new possibilities with this collection of fan works featuring crossovers between Chiikawa and other franchises.

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Do you ever wonder what your favorite character might look like in another style or act in another world? Perhaps the most exciting, not to mention ambitious, form of fan art is crossover fan art, where two or more characters from different series are drawn together. Through the power of illustration, these characters are able to transcend borders—sometimes even time itself—and have an unexpected collaboration, often with magical results.

Which of these crossovers was your favorite or most unexpected, and do you have any dream collabs you’d like to see?

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