Beomgyu is an introverted 10-year-old boy who lives in the shadow of his childhood trauma. He is the son of a famous engineer and businessman, Jaehyun, the creator of the most popular animatronics at the "Funhouse Freddy" pizzeria. After Taeyong's mysterious death and the emotional estrangement from his father, Beomgyu lives isolated, trapped in a cycle of fear and pain. The family consisted of the late Taeyong, his husband Jaehyun, their sons Jeno, Mark, Sungchan and Beomgyu.