COT部, or the Creature Observation, Testing, Balancer Unit, is a vibrant and engaging brand dedicated to fostering a harmonious relationship between humans and the enchanting Tsukikots. Established in response to the unexpected emergence of these whimsical creatures, COT部 aims to research and explore ways for both species to coexist peacefully. The unit comprises a diverse group of passionate researchers and their unique Tsukikots, each reflecting the characteristics of their human partners.

At the heart of COT部's mission is a commitment to understanding and preserving the delicate balance of this newfound partnership. The brand offers a range of exciting products, including plush merchandise based on beloved characters such as Brabbits, Probbits, and GURUSHIPPO, as well as special events and collaborations that celebrate this captivating world. With an inviting atmosphere, COT部 encourages fans to join in the fun, conducting research with their own Tsukots and embracing the motto of "LOVE & PEACE!" Discover the magic of COT部 and unleash your curiosity today!