When Park Chan-hong (Lee Sin-young) is attacked by a group of bullies, his classmate Heo Don-hyeok (Shin Seung-ho) bravely steps in to save him. The one thing he asks for in return is for Chan-hong to pay his rent, but there’s a catch – the money that Don-hyeok gives to Chan-hong is meant to pay for his daily private lessons. Now, with nothing but time on his hands, the pair begin to spend time together and a friendship develops.
| Also Known As: | Friendship Contract |
| Directed by: | Yoo Young-eun |
| Written by: | Kim Joo-man |
| Starring: | Lee Shin-young, Shin Seung-ho, Kim So-hye |
| Extended Cast: | Oh Hee-joon, Min Do-hee, Jo Yi-hyun, Kim Won-hae, Baek Ji-won, Jang Hye-jin, Kim In-kwon, Kim So-ra, Kim Do-wan |
| Original network: | KBS |
| Original release: | 6 April 2020 |
| No. of episodes: | 16 |
| Distributor: | KBS |
