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김환희 as Su-mi 유선 as Seo-jin 이윤지 as Jin-a Cha Gun-woo as Gi-han Kim Si-eun as Hee-soo 이순재 as Senior Park 송재림 as Barista Yoon 박현숙 as Seon-a 오동민 as Eun-seok 윤주만 as Han-yoon 민경옥 as Soon-sim