Shuuichi Saihara is the ultimate detective, working on a chase to find the troublesome phantom thief, known as Kokichi Ouma. Kokichi, on the other hand is a very skilled and intelligent thief and troublemaker, also known as the ultimate supreme leader. Shuichi's task is to catch the phantom thief, but it isn't that easy.. As Kokichi is very quirky and hard to catch. He also cares about Kokichi, even though it might not look like it. How will detective Saihara solve the case?