A cute AI detective and a boy who loves mysteries; the unique duo solves difficult cases one after another! Father, a trainer of artificial intelligence, died a mysterious death in a locked room. His son, Tasuku, is the "detective" AI left behind by his father, he meets Ai, and together they chase after the real murderer. Together, they discover an unexpected conspiracy, Ai's twin, the "criminal" AI, and the battle of deduction unfolds...!