NaN/100 votesLoading...#1 - 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.
Director: N/A
Writer: N/A
NaN/100 votesLoading...#2 - The Day the Crazy Guy Entered My Heart
Season 1 Episode 2 - Aired 9/25/2020
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.
Director: N/A
Writer: N/A
NaN/100 votesLoading...#3 - Password Secret
Season 1 Episode 3 - Aired 10/2/2020
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.
Director: N/A
Writer: N/A
NaN/100 votesLoading...#4 - Be a Pacemaker
Season 1 Episode 4 - Aired 10/9/2020
Sang Ha invites Jin Won on his milk delivery run to train together.
Director: N/A
Writer: N/A
NaN/100 votesLoading...#5 - Exercise, not a date? Date, not an exercise?
Season 1 Episode 5 - Aired 10/16/2020
Coach Bong takes the training team on an excursion to prepare for their competition. Sang Ha receives a threat from those whom he owes money to.
Director: N/A
Writer: N/A
NaN/100 votesLoading...#6 - That Guy's Password
Season 1 Episode 6 - Aired 10/23/2020
Jin Won thinks of a way to help Sang Ha with his financial troubles, while still protecting his pride.
Director: N/A
Writer: N/A
NaN/100 votesLoading...#7 - Jinwon VS Up and Down, Who is the Winner?
Season 1 Episode 7 - Aired 10/30/2020
Sang Ha's lenders pressure him into a challenging feat of finishing the marathon in order to repay his debt.
Director: N/A
Writer: N/A
NaN/100 votesLoading...#8 - Marathon and Love in Common
Season 1 Episode 8 - Aired 11/6/2020
What do marathons and love have in common? They can't stop once they start.
Director: N/A
Writer: N/A
Worst Episodes Summary
"That Guy's Password" is the worst rated episode of "Mr. Heart". It scored N/A/10 based on 0 votes. Directed by N/A and written by N/A, it aired on 9/18/2020. This episode scored NaN points lower than the second lowest rated, "The Day the Crazy Guy Entered My Heart".