Thunderbird Entertainment kids division Atomic Cartoons is collaborating with Japanese pop-culture brand tokidoki to develop a new original animated series based on the toy brand Mermicorno.

The toon will be executive produced by tokidoki co-founder and CCO Simon Legno and CEO Pooneh Mohajer, plus Thunderbird CEO Jennifer Twiner McCaroon and VP of originals Matthew Berkowitz.

Legno created the comedy-adventure series, with Shea Fontana (DC Super Hero Girls, Polly Pocket) writing and developing, in addition to serving as EP and showrunner. The show treatment follows along as a team of Mermicornos try to stop an evil force that wants to take over the world.

Mermicorno is part of tokidoki’s Unicorno toy line that was first introduced in 2015 at San Diego Comic-Con. It now includes three series of collectible figures, as well as themed plush, bags, apparel and novelty products that are available in more than 20,000 stores worldwide.

This new series joins Atomic’s busy development pipeline, which includes the mixed-media series Eerie, based on Scholastic’s bestselling book series Eerie Elementary. Atomic also recently signed on to produce an animated TV series based on Princesses Wear Pants, the New York Times bestselling book series by Savannah Guthrie.