Taki, a 16-year-old high school student, he heads to a secret hangout spot after school to meet up with his friends. After skateboarding through the city, he arrives at an old, abandoned factory, just the kind of place he likes to explore. His friends are already there, and together they begin to investigate the weird building. Their curiosity leads them to a strange, looking room. As they step inside, a sudden force shoves them forward. Everything blurs and the next moment, they’re above falling into an entirely new world. A glowing message appears before Taki’s eyes: “System: Starting…”