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Yoojin tells Sanghyeok that she cannot marry him, and at the same time, she assures Minhyeong that she cannot have a relationship with him. She begs Sanghyeok to give her a chance to stand on her own. Sanghyeok does everything he can to change her mind, while stepping up to Minhyeong and warning him to not shake her heart.
Bae Yong-jun
Kang Joon-sang
Choi Ji-woo
Jeong Yoo-jin
Park Yong-ha
Kim Sang-hyeok
Park Sol-mi
Oh Chae-rin
Lee Hae-eun
Gong Jin-sook
Ryu Seung-su
Kwon Yong-gook
Song Ok-suk
Kang Mi-hee
Jeong Dong-hwan
Professor Kim Jin-woo
Kim Hae-sook
Yoo-jin's Mother
Jang Hang-seon
Supervisor Kim
Jung Won-joong
Teacher Park Jeong-o
Ha Jae-yeong
Jeong Hyeon-soo
Lee Hyo-choon
Sang-hyeok's Mother