Cinderella at 2AM Season 1 Episode 5

Ju Won leaves his family and shows up at Yun Seo's door. His appearance exposes their relationship to the team, who even discover that their breakup was because of Ju Won's family's opposition, causing them to create an unbearable atmosphere for her in the office. Meanwhile, a crisis hits the Hanok Stay grand opening art exhibition, but Yun Seo is away from her desk to handle it.