Hinako Ninomiya was hired by Principal Kuno to manage the "delinquent" students at Furinkan High. At first glance, she appears to be an elementary school-aged child, full of energy and excitement. However, her story is far more intricate.
When Hinako was very young, she suffered from a severe illness that required hospitalization. During her stay, she encountered Happosai, who taught her a chi-draining technique. He did this so she could stop the nurses from chasing him after he stole their underwear.
Whenever Hinako uses this technique, she transforms into an older, twenty-something woman, which is her true age. Otherwise, she spends most of her time as a young, energetic child. Her personality shifts to match her current age.
Hinako serves as the homeroom and English teacher for the 10th grade at Furinkan High. She has a crush on Soun Tendo because he was kind to her when she was in her child form. Hinako sees it as her mission to help Ranma improve his behavior, while Ranma would prefer to do just enough academically to get by.
(Source: Rumic World)
