( HARUKYU ) Returning home after several years spent studying abroad and eventually graduated, Kim Junkyu decided to take a break and went out of his comfort zone by becoming a babysitter. He came across the Watanabe Family, who were looking for a caretaker to look after their youngest child. As much as Junkyu was fancied by the family members, especially the oldest Haruto Watanabe, a terrifying secret slowly revealed itself.