Ho Zeze Factory Lee Cho-hee as Lee Dal-nim as Song Dae-gwon as Lee Hyun-bin as Ryu Ji-hoon Cha Se-young as Ga Seung-hyun Kwon Hyuk-soo as Jo Yoon-bal Extended cast Jo Seon-mook Song Kyung-hwa Jo Shi-nae Baek Ji-won Oh Hee-joon Cameo appearances Kim Young-hee Park Sung-kwang Heo Kyung-hwan Original soundtrack OST Part 1 OST Part 2 OST Part 3 OST Part 4 OST Part 5 OST Part 6 OST Part 7 Ratings Awards and nominations References External links Korean-language television shows 2016 South Korean television series debuts 2016 South Korean television series endings MBC TV television dramas South Korean romantic comedy television series Television shows based on South Korean webtoons Television series by Studio Santa Claus Entertainment