Tsubaki(つばき) is a mysterious girl living in Justice City. She appeared in Crayon Shin-chan: Fierceness That Invites Storm! The Kasukabe Boys of the Evening Sun. She looks like a Japanese girl from around the 1960s to 70s and is roughly 14 years old. She has a neat, polite, discreet, and lovely personality. She was reportedly taken in by Governor Justice and has been serving him, while also gently aiding Shinnosuke. As time passes, Shinnosuke is drawn to Tsubaki's kindness.
