Hyun Joo discharges herself from the hospital without Seok Joon's knowing. He searches for her but fails to find her. Meanwhile, Da Hye invites Do Young over for dinner and tells him that it is her birthday. Right before they're about to open a bottle of wine, Do Young receives a call from Hong Sook and finds out that Hyun Joo has gone missing. Da Hye urges him to go.