The WORST episodes of Mr. Heart

Every episode of Mr. Heart ever, ranked from worst to best by thousands of votes from fans of the show. The worst episodes of Mr. Heart!

Sang Ha, a sprinter, partners with marathoner Jin Won as his pacemaker. Despite initial tension, their shared passion for running brings them closer.

Last Updated: 6/22/2025Network: HeavenlyStatus: Ended

6.83

18 votes

#1 - That Guy's Password

Season 1 - Episode 6 - Aired 9/25/2020

Jin Won thinks of a way to help Sang Ha with his financial troubles, while still protecting his pride.

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7.05

20 votes

#2 - The Day The Crazy Guy Entered My Heart

Season 1 - Episode 2 - Aired 9/18/2020

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.

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Jinwon VS Up And Down, Who Is The Winner

7.29

17 votes

#3 - Jinwon VS Up And Down, Who Is The Winner

Season 1 - Episode 7 - Aired 10/2/2020

Sang Ha's lenders pressure him into a challenging feat of finishing the marathon in order to repay his debt.

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7.37

19 votes

#4 - That Guy's Password

Season 1 - Episode 1 - Aired 9/18/2020

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.

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7.37

19 votes

#5 - Be A Pacemaker

Season 1 - Episode 4 - Aired 9/25/2020

Sang Ha invites Jin Won on his milk delivery run to train together.

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Exercise, not a date? Date, not an exercise?

7.44

18 votes

#6 - Exercise, not a date? Date, not an exercise?

Season 1 - Episode 5 - Aired 9/25/2020

Coach Bong takes the training team on an excursion to prepare for their competition. Sang Ha receives a threat from those who he owes money to.

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7.47

17 votes

#7 - Marathon And Love In Common

Season 1 - Episode 8 - Aired 10/2/2020

What do marathons and love have in common? They can't stop once they start.

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7.53

19 votes

#8 - Password Secret

Season 1 - Episode 3 - Aired 9/18/2020

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.

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