In “HeartBeat”, Sun Woo-Hyeol is not your ordinary vampire. Rather than hunting humans as prey so that he can suck their blood, he walks through the night protecting them from other vampires. That is how he met Yoon Hae-Sun. She was being chased by another vampire, but Sun Woo-Hyeol rescued her. Since he was her savior there was no need to be afraid of him. Instead, they fell in love.
“The Kidnapping Day” begins with a scene in a hospital. It’s a day like any other day at a hospital. Lots of patients, people accompanying patients, doctors, and other medical staff. A doctor is there with his young daughter. Suddenly a man comes up from behind to attack him. The man failed and people were able to subdue him.