During a full moon night, Do-Gyeong has an unexpected encounter with a vampire covered in blood. At first, he thinks it's only a nightmare, but becomes shocked when the same vampire follows him persistently to his school. Although initially fearful, Do-Gyeong realizes that the vampire has some unusual traits such as enjoying well-cooked meat, avoiding cats, and cherishing snuggles. Can Do-Gyeong unravel the mystery behind this vampire's fixation on him?