Hibari is the only biological son of a Yakuza boss, who identifies as female and has three sisters. She presents female publically, much to her father's disdain - he calls her a pervert (hentai) for this reason. Hibari is characterized by her beauty and wit, and she is also able to beat nearly everyone in a fight.  Hibari falls in love with Kohsaku (the main hero) as soon as she sees him, and continues to tease her even after Kohsaku learns that Hibari is physically male and thus rejects her.  Hibari is also the idol of her school, and she is excellent both in sports and grades. She has as main - unrequited - admirer Shiina, one of her classmates.

Kousaku, a teenage boy, moves in to the home of his mother's friend after she dies. This friend happens to be a Yakuza boss with four beautiful daughters. Kousaku is surprised to discover that  the most beautiful daughter, Hibari, is biologically male. Hibari is also very interested in Kousaku, and so their crazy but happy life together begins. <br><br>
(Source: Anime News Network)

Retired from voice acting agency Aoni Production due to marriage.

A teenaged Kohsuka has now moved in the home of his mother's friend, because she had died a while back. Its just so happens that the Yakuza family has four beautiful daughters, but the one daughter, Hibari, thats more beautiful than the rest of the daughters is actually a boy. Hibari just can't keep his hands off Kohsuka and so their crazy yet happy lives go on.<br><br>
(Source: Anime News Network) 

Hibari Oozora