My Heart is Beating

Woo-hyeol is unable to forgive himself for losing control due to his vampire instincts upon seeing In-hae's blood. As he suffers from the cruel fate that prevents him from being with In-hae, he decides to leave In-hae. Meanwhile, upon discovering that Woo-hyeol is the half-vampire he has been searching for, Do-sik orders Man-hwi to capture Woo-hyeol.

In-hae's long-awaited father makes a return, but her emotional wounds make it difficult for her to accept him. Meanwhile, Woo-hyeol's health continues to deteriorate, deeply saddening Sang-hae and Dong-seop as they realize that time is running out for him. Meanwhile, as Man-hwi fails to capture Woo-hyeol, Do-sik takes matters into his own hands.

"Even when my heart doesn't race, it can hurt this much." Although Woo-hyeol left In-hae for her own good, the longing hasn't faded. In-hae also misses him and wanders in search of Woo-hyeol, who suddenly disappeared. At that time, Manhwi visits the guest house, putting In-hae in danger. To make matters worse, rumors spread about a vampire living in the mansion.

As Woo-hyeol accepts the fact that there's not much time left for him, he decides to spend the remaining time with In-hae. Do-sik, upon finding out that Woo-hyeol is getting close to death, also becomes anxious. Will Woo-hyeol and In-hae be able to hold onto their love until the end?