The drama is based on the popular manga of the same name by Nakajo Hisaya, which has already been dramatized in Taiwan. Horikita plays the protagonist Ashiya Mizuki, a Japanese girl in the U.S. who one day sees the young athlete Sano Izumi (Oguri) compete in the high jump on television. She begins to idolize him, and decides to move to Japan to attend the same school as him. However, Izumi goes to an all-boys school, so Mizuki disguises herself as a boy to achieve her dream of being with her idol.

Cast
* Horikita Maki as Ashiya Mizuki
* Oguri Shun as Sano Izumi
* Ikuta Toma as Nakatsu Shuichi
* Konno Mahiru as Hara Akiha
* Kamikawa Takaya as Umeda Hokuto
* Matsuda Seiko as Tsubaki, the School Principal
* Ukaji Takashi as Sawatari
* Kobayashi Susumu as Yoshioka
* Okada Yoshinori as Ashiya Shizuki
* Daito Shunsuke as Sano Shin
* Shirota Yu as Kagurazaka Makoto
* Moriguchi Yoko as Nanba Io
* Harada Natsuki as Tanabe Kanako
* Yamazaki Hajime as Ashiya Takumi
* Tsutsui Mariko as Ashiya Eiko
* Inagaki Goro as Kitahama Noburo
* Sugimoto Tetta as Sano Takehiko