Tsueko Azumi is a manga artist and original creator known for the shoujo series Oshare Kozō wa Hanamaru. Azumi served as both the writer and illustrator for the original manga, which was serialized in Shueisha’s Margaret magazine beginning in 1988 and spans a total of ten collected volumes. The story follows a 14-year-old junior high school student named Kotobuki who develops a crush on Hodaka, a 26-year-old boutique owner and fashion designer, leading to a complicated relationship built on her initial deception about her age.

The work was adapted into a single-episode original video animation, or OVA, titled Oshare Kozō wa Hanamaru, released on April 23, 1993. For the anime production by Madhouse, Azumi is credited with the original work. The OVA retains the core premise of the manga, depicting Kotobuki’s infatuation with the older shopkeeper and the resulting romantic complications. The available information about Tsueko Azumi’s career is centered on this singular creation, and no other notable original works or adaptations are documented in the search results.