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After the graduation, Si Hyun and Se Joo decides to go clubbing while Soo Ji is out with Ki Young. At the club, Si Hyun meets a woman and shares a kiss with her. It is later revealed that Si Hyun has kissed his fellow classmate’s mom. Meanwhile, Soo Ji decides to take revenge on Ki Young and targets Park Hye Jeong and Eun Tae Hee.
Woo Do-hwan
Kwon Shi-Hyun
JOY
Eun Tae-Hee
Mun Ka-young
Choi Soo-Ji
Kim Min-jae
Lee Se-Joo
Shin Sung-woo
Kwon Seok-Woo
Jeon Mi-seon
Seol Young-Won
Kim Seo-hyung
Myung Mi-Ri
Jeong Ha-dam
Ko Kyung-Joo
Moon Hee-kyung
Oh Se-Ri
Lee Yeong-jin
Jung Na-Yoon
Tae Hang-ho
Priest Matteo
Oh Ha-ni
Park Hye-Jung
Hwang Jeong-min
Jo Geun-Sook
Lee Jae-kyoon
Lee Ki-Yeong
Kim Yeong-ok
Grandmother from nursing home
Kim Ah-ra
Bing Bing
Kim Jung-young
Tae Hee's aunt