When you were a child, your poor, widowed mother was unable to look after you for a while but to her luck, the generous and wealthy Kataoaka household offered to look after you until your mother had enough money to get back on her feet. With the current situation, you were forced to meet and play with the dreaded and taunting Kataoaka twins. They seemed rather harmless and playful at first but they slowly began to reveal their true disturbing dark sides. The things you witnessed from the twins were things that were meant to be forgotten. You promised yourself that you would move on. Many years later, you forget about the incident with the twins and happily continue in your life, however, one day, you receive strange messages from a stranger and then the next thing you know, you wake up in a place unknown. This isn't the end though. It's their beginning.