Career
Other works include Partner, Andante and Honey Bitter. Obana began her manga career as an assistant to Momoko Sakura, the creator of Chibi Maruko-chan. In 1990 she debuted with a one-shot manga) Mado no Mukō, which was published in the autumn 1990 issue of Ribon Bikkuri.
Later stories would appear in Ribon Original and Ribon magazines.
In 1994, she authored Kodomo no Omocha, a shojo manga series about a child actress who interacts with an aloof elementary school boy. Within the television series, there is a character named after her.
The manga ran until 1998, totaling 10 tankobon volumes. In 1999, she wrote a one-shot called Mizu no Yakata which focuses on the drama story that characters Sana and Naozumi of Kodomo no Omocha starred in.
In 2015, Kodocha was adapted into a stage play.
She also released a Kodocha one-shot for the 60th anniversary of Ribon. In 1999, she authored Partner, a drama series about a two pairs of twins who are classmates and friends when one of them is killed by a drunk driver. Partner was noted for its dark, mature, and disturbing tone, and ran through 2000 in Ribon, and compiled into 3 tankobon volumes.
lieutenant was serialized in Ribon through 2002, and compiled into 3 tankobon volumes.
In 2003, she worked on Pochi, which is about a junior high school girl who is stressed about life and her classmate whose mother treats him as a pet dog. In 2004, Obana started a josei manga called Honey Bitter, about a girl who was mistreated by her ex-boyfriend but then has to deal with him as a coworker in their aunt"s detective agency.
The manga was serialized in Cookie in February 2004, and is one of her ongoing works, occasionally appearing in the Oricon charts for top manga. She also wrote some manga for the josei magazine Chorus.
In November 2008, Obana took a hiatus from making manga because of her pregnancy and worsening tendonitis.
She resumed working on Honey Bitter in November 2009. In 2010, celebrating her 20th anniversary of her debut, she authored Deep Clear, a two-part crossover story with characters from Kodomo no Omocha and Honey Bitter.