Mizuki Ashiya (female lead)- Taeyeon (SNSD), Sulli f(x)
Mizuki Ashiya is the lead female character in “Hana Kimi” who disguises herself as a male high school student to help the high-jumper, Izumi Sano, jump again.
Izumi Sano (male lead): Minho (SHINee), Eunhyuk (Super Junior)
Izumi Sano is the lead male lead character. He suddenly stopped high-jumping for unknown reasons and finds out Ashiya Mizuki’s true gender accidentally early in the series.
Shuichi Nakatsu (second male lead): Sungmin (Super Junior)
Nakatasu becomes Ashiya’s close friend at Osaka Gakuen (Academy) and begins to realize his feelings for her, not realizing she is actually female. He becomes conflicted with himself, thinking that he is a homosexual, and becomes jealous of Sano for being close with Ashiya.
Minami Nanba (head dorm of 2nd dormitory) – Changmin (TVXQ)
Nanba is the head dorm of the 2nd dormitory and a “ladies man” with multiple girlfriends at a time (when he’s not found out). The 2nd dormitory includes a mix of athletic and scholar students. The 1st dormitory mainly consists of athletes, while the 3rd mainly consists of artistic and intelligent students.
Hokuto Umeda (school doctor) – Heechul (Super Junior), Yunho (TVXQ)
The hot homosexual doctor at Osaka Gakuen. He is the first to know about Ashiya’s true gender and gives her advice and acts as her mentor throughout the series. Umeda is Nanba’s uncle.