|Family|| Tamako Kitashirakawa (daughter)|
Hinako highly resembled Tamako. In high school, she had short, black hair and blue eyes and was often seen donning a sailor-styled uniform. She had a mole on her neck, similar to her daughter.
As a teenager, she was a polite girl and revealed to be bashfully modest. Following Mamedai's confession to her, she had immediately scurried away. Despite this, she reciprocated his romantic feelings.
In her short life, Hinako was a loving and supportive mother to her children. Her kind, open-minded nature was apparent in her patient attitude for Mochizō's teasing towards her daughter, as she reassured the latter that he only did so because he had a crush on her.
She acted as the imparter of these values in the Kitashirakawa household with a contrary, yet caring husband, and continued to be viewed in a positive, fond light after her death and the figure Tamako would base her values off of in her teenage years.
- She was skillful at the baton.