Tekka no Komaki-chan is basically a younger, way more mischievous version of Tekka no Maki-chan. She's got a roll of tuna sushi sticking out of her head and solid red eyes, and she dresses pretty much like Maki-chan does.
She shows up in the series as Maki-chan's ally—kind of like a sidekick or student. Komaki-chan first appeared on July 10, 2009, in the episode "Anpanman and Tekka no Komaki-chan."
Content compiled by AnimeList.moe from publicly available sources.