The Stone Garden S01 E06

No Min-woo (as Yoon Tae-Woon) Yang Jin-sung (as Yoo Ji-Na) Han Hye-rin (as Jung Hye-mi) Cha Joo-young (as Cha Joo-Young) Yun Ju-Sang (as CEO Yoon) Kim Jin-geun (as Yoo Ji-Na's father) Kim Hye-sun (as Yoo Ji-Na's mother) Kil Yong-woo (as Jung Hye-Mi's father) Park Jin-joo (as Mal-Sook) Lee Yong-joo (as Man-Soo) Kim Do-yeon (as Section Chief Oh Mi-Ran) Jang Jae-ho (as IM employee) Jeon Jin-seo (as Yoon Tae-Woon (young))