Sang Ha, a sprinter, partners with marathoner Jin Won as his pacemaker. Despite initial tension, their shared passion for running brings them closer.
Top Billed Cast
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Cheon Seung-ho
Jin-won (8 episodes)
Han Se-jin
Sang-ha (8 episodes)
Lara
Hyo-ri (8 episodes)
Yoo Jang-young
Coach Bong (8 episodes)
Jang Eui-soo
University track team member (1 episode)
YWB
Yeo Woon Bok
Jin Won's father (1 episode)
Media
![[TEASER] MR HEART with ENGSUB](https://i.ytimg.com/vi/aM66JfEK2oE/hqdefault.jpg)
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