Graceful Friends - Season 1 Episode 9 Pandora's Box Everyone has secrets. Especially people closest to you.
Overview: Goong Chul starts to find out something is off about Jung Hae’s behaviour and starts to doubt her. When he confronts her about it, they get into a fight. Jae Hoon talks to Jung Hae about their past, and Jung Hae warns him about what will happen if he continues on with his antics.