Taku Kamishiro has completely integrated himself into the ID group, Rudiment, for a chance to find his sweetheart, Mika Hanazono. This time, they’ve finally picked up on something relating to the bloody incident at Taku’s old high school. Will the original perp finally reveal themselves? Unfortunately, they might not get the chance to find out, since CID is headed to the scene as well! The two organizations finally collide in volume 5!