HeartBeat - Season 1 Episode 7 Ah.. I told you not to open it until 100 years.
Overview: Woohyeol is surprised to see Na Haewon, who looks exactly like his past love, Haeseon. He can't approach Haewon because she doesn't seem to remember her past life. As Inhae feels sorry for Woohyeol, she invites Haewon to a dinner for Woohyeol to spend some time with her. However, Inhae becomes anxious, thinking that Woohyeol's vampire identity might be revealed during dinner.