The story is set in Japan in the near future, specifically in the year 2035. A major incident known as "Burst" occurred due to research into artificial life. An AI named "Matter" has eroded the Kurobe Gorge. The government has prohibited entry into the research city, which is referred to as humanity's last hope. Two years later, Aiko Tachibana, a 15-year-old girl who lost her family in the incident, is told by transfer student Yuuya Kanzaki the truth about a secret hidden within her body that she was unaware of. It is said that the key to solving the mystery lies in the Primary Point, the center of the Burst. When a boy and a girl, who bear the future of humanity, meet, what will be the new truth?