Dokin-chan is an anthropomorphic germ character from the Anpanman franchise. Her appearance features an orange-red germ body with a white face, green eyes, a red nose, and small coral red circular marks on her cheeks. She wears pink boots and white gloves, and possesses a single antenna and a long tail common to germ characters.

She acts as Baikinman's partner in crime, aiding his schemes. Her personality is selfish, demanding, childish, and greedy. She frequently bosses Baikinman around, commanding him to fetch items or people, but typically flees when their plans collapse. Despite this, she occasionally shows kindness, particularly towards Shokupanman, for whom she holds a significant romantic infatuation.

Her key relationships involve a complex partnership with Baikinman, whom she treats rudely yet cares for on some level. Her obsession with Shokupanman leads her to decorate her living space with his memorabilia and pursue his affection through extreme measures. She has a younger sister, Kokin-chan; their typical sibling relationship mixes camaraderie and rivalry, often heightened by their shared interest in Shokupanman.

Historically, she wielded a staff that could enlarge or shrink objects, though its use was limited and it was eventually phased out. She also owns a pink UFO for transportation, occasionally used to hold hostages during Baikinman's schemes but more frequently employed for non-combat tasks like carrying baskets or flowers.

She appears in "Soreike! Anpanman: Ningyo Hime no Namida" among other media. Her character remains consistent across appearances, with no significant evolution or background story beyond her established traits and relationships.