Episode 9 S01 E09

Son Jin-young Hwang Seok-jeong Jung Si-a (as Gye Na Ri) Kim Won-jun (as Dokko Dong Baek) Park Jin-joo Park So-eun Shin Ju-hwan Hwang Mi-young (as Double Dragon / Ye Rim) Ji Chan Min Ji-Young (as In Jo Hee) Choi Woong (as Hwang Jun) Jang Do-yun (as Dokko Mo Ran) Jung Ji-so (as Park Bok Nam) Jeong Ji-sun (as Na Chu Nam) Kim Bo-ra (as Dokko Eok Sae) Cha Young-nam (as Kwak Gook Kwang) Chae Jong-hyeop (as King Sejong)

based on webcomic or webtoon