Meow, the Secret Boy 1x19

Hong Jo stays with Jae Seon and the two noticed an old cat that has yet been adopted. Hong Jo keeps asking Jae Seon if he really has nobody to ask the favor of adopting a cat. Jae Seon reluctantly heads to his parents' house, the house he walked out years ago with Hong Jo. The two finally meet Jae Seon’s father in person and are both surprised.