By Dramabeans
Mom's Friend's Son
Yoo Je-won
Shin Ha-eun
16
70–80 minutes
tvN
South Korea
Korean
Source: Wikipedia
Choi Kyung-jong, a professor of emergency medicine and Seung-hyo's father.
Im Kyung-ran
Choi Seung-hyo Cho Yeo-jun as young Choi Seung-hyo
Bae Geun-sik, Seok-ryu's father who runs a small snack restaurant in the neighborhood.
Song Hyeon-jun, Seok-ryu's ex-fiancé.
Kang Dan-ho
Seo Hye-sook, Seung-hyo's mother who works at the Ministry of Foreign Affairs and loves her work a lot.
Herself
Jeong Mo-eum
Jang Tae-Hui
Na Mi-sook, Seok-ryu's mother who has a blunt and strong lifestyle.
Bae Seok-ryu Oh Eun-seo as young Bae Seok-ryu
Yoon Myung-woo, co-CEO of "the Architecture Atelier In" and Seung-hyo's college senior.
Bae Dong-jin, Seok-ryu's younger brother who dreams of becoming a health trainer.