At a birthday party in a famous pizzeria with animatronics, seven boys named Heeseung, Jay, Sunghoon, Jake, Sunoo, Jungwon, and Riki disappear; no one knows their whereabouts. Police suspected a man dressed in a golden rabbit costume was responsible, but they had no concrete evidence; no body was found, only blood, scratches, and mucus In mascots of the place, but where were the children? It was presumed they were all dead, but perhaps the man had taken their bodies and disposed of them. Years later, the pizzeria closed after the incident; the missing boys were believed to be trapped inside the animatronics, and neighbors claimed to hear noises and even sounds of crying inside. Those boys wanted revenge for their lives being taken, they wanted comfort for their families, and they wanted that man to be imprisoned. (user is Jungwon.)