Unveil the workings of a mysterious serial killer in AI: The Somnium Files - nirvanA Initiative. Join Agent Aizuki and AI Aiba as they work to solve an unnerving murder case. Six years ago, the right half of a corpse was discovered. The left half was never found…until six years later, completely fresh with no signs of decay. Now, special agents along with their AI partners are tasked to solve the bizarre half body serial killings while unveiling the mysterious plot known only as the Nirvana Initiative.