Seung Hui is a pole vault athlete at Daehan College of Physical Education. She had amazing records in the past, but she's now suffering from a slump. She was having a hard time until someone came to Korea to help her. It's Kang Ji Na, a track-and-field star who was famous worldwide. Kang Ji Na becomes Seung Hui's coach, and they have their special 50-day training together.

Kim Hee-jung
Kang Jin-a

Hwang Se-on
Choi Na-ri

Lee Soo-kyung
Nam Seung-hee

Lee Hyun-kyoung
Park Min-hee

Lee Jae-yong
Nam Ki-seok

Kim Min-sang
Dr. Bae

Choi Woong
Lee Joon-tae
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