As Fantasien faces corporate ruin and Hiromi Morimoto is arrested for murder, Tamami reveals her secret mission to avenge her sister's death. The situation escalates when the park's AI system, MAOS, suffers a catastrophic failure, trapping visitors in malfunctioning rides and turning the amusement park into a dangerous prison. Amidst the chaos, Takeshi and his allies struggle to stop a mysterious culprit who is manipulating the system to commit further crimes.