

Mr. Heart
Jin-won cares about one thing only: running. When he finds himself in a slump, his coach suggests Sang-ha as a pacemaker. Though Sang-ha's efforts are initially ignored, they find themselves growing closer and closer over time.
Overview
Jin-won cares about one thing only: running. When he finds himself in a slump, his coach suggests Sang-ha as a pacemaker. Though Sang-ha's efforts are initially ignored, they find themselves growing closer and closer over time.
Episodes

1. That Guy's Password
Jin Won is insulted when his coach assigns him a freshman student to be his pacemaker during training and his upcoming marathon. However, after testing Sang Ha, Jin Won sees his skill and potential.

2. The Day the Crazy Guy Entered My Heart
After accidentally falling asleep next to Sang Ha, Jin Won sleeps more soundly than he has in years, preparing him well for the next day's marathon. After the race, Jin Won is surprised to see that Sang Ha didn't join the rest of the athletes at the celebration party.

3. Password Secret
Jin Won questions Sang Ha about why his passcode to his door is the same as his passcode. Sang Ha reveals that he went to high school with Jin Won.
Cast & Crew

Cheon Seung-ho
Jin-won

Han Se-jin
Sang-ha

Lara
Hyo-ri

Yoo Jang-young
Coach Bong

Park Geon-Rak
Loan Shark firm boss




