Mocha, a brown female puppy in the Cinnamoroll universe, features pink flowers or ribbons on her ears. Her design shifted from early two-tone pink and red flowers to predominantly pink ribbons in modern art. Born on March 15, 2007, she lives in a white house on a hill. Kind, caring, and talkative, Mocha often chats with customers at Café Cinnamon. She acts like an older sister among her friends, though the Fluffy Fluffy Cinnamoroll manga shows she can sometimes be bossy or a crybaby.

Fashion is her primary passion; a skilled outfit coordinator, she dreams of hosting a fashion show and becoming a bride. She initially mistook Cinnamoroll for a girl and styled him with bows and makeup. After discovering he is male, she continued coordinating his outfits, designing all his idol costumes. She loves chocolate gateau and fruit tarts and has a noted interest in strawberries.

Mocha leads the idol group Cinnamoangels with Chiffon and Azuki. Her idol form has rounder, curvier ears and floral accessories with more petals and yellow centers. She harbors a crush on Cinnamoroll, though he doesn't return her feelings. This creates a rivalry with Chiffon, leading to occasional conflicts, but they maintain a strong friendship and support each other. In volume 4 of Fluffy Fluffy Cinnamoroll, Mocha develops feelings for Galette from a popular rock band. She confesses, and they become intimate after Cinnamoangels' debut, though Galette is not mentioned afterward, implying the relationship ended.

In the group's film adventure, Mocha proactively confronts the antagonist Chowder about his actions and takes initiative during their quest. She accompanies Cinnamoroll and the others into a mysterious world transported by Chowder's spell. Mocha ranked 7th in Sanrio's 2020 Sub Character Contest.