Yoon Ji Suk is Ji-ho's younger brother.
Appearances
Because This Is My First Life
Guest cast, played by Noh Jong Hyun
- Episode 1x01: Because This is My First Time Being Thirty (Oct 9, 2017)
- Episode 1x04: Because This is My First Marriage (Oct 17, 2017)
- Episode 1x05: Because This is My First Promise (Oct 23, 2017)
- Episode 1x06: Because This is ''Our'' First Time (Oct 24, 2017)
- Episode 1x10: Because This is My First Time Having In-Laws (Nov 7, 2017)
- Episode 1x11: Because It is the First Time for Today's Ocean (Nov 13, 2017)
- Episode 1x12: Because This is My First Desire (Nov 14, 2017)
- Episode 1x16: Because This is My First Life (Nov 28, 2017)