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A man visits Hae-joon at school and reveals that he is Hae-joon's birth father. Although Hae-joon is initially speechless, he feels relieved to learn that his father has not abandoned him. To find out more about his father, he and San-ha talk with Aunt Yi-hyun to gain insight into his father's character before meeting him in person and uncovering the reasons for his sudden return after all these years.
Hwang In-yeop
Kim San-ha
Jung Chae-yeon
Yun Ju-won
Bae Hyeon-seong
Kang Hae-joon
Choi Won-young
Yun Jeong-jae
Choi Moo-seong
Kim Dae-uk
Seo Ji-hye
Park Dal
Kim Hye-eun
Kwon Jeong-hee
Baek Eun-hae
Kang Seo-hyun
Min Ji-a
Kang Yi-jyun
Youn Sang-hyun
Lee Jun-ho
Ha Seo-yoon
Do Hui-ju
Seong Byeong-suk
Yeo Sa-nim
Lee Jong-hyuk
Yang Dong-gu
Oh Eun-Seo
Yoon Ju-won (Child)
Shin Seo-Woo
Kim San-ha (Child)
Choi Jae-yoon
Kang Hae-joon (Child)