"The truth is often what lies behind the appearance, so it can never be reached from a distance." This is the story of a detective academy and the story of life as a whole. Everything revolves around a detective academy student known as "Tracker". With a mysterious life experience, a superior IQ, and excellent reasoning, can you see through the disguise that covers everything? With a nearly perfect modus operandi and a seemingly impossible crime without any flaws, can it escape Tracker's eyes? The dull but joyful campus life is full of various feelings all the time; the thrilling life and death chases all reveal the entanglement of love and hate; when family, friendship, love, and many other emotions are intertwined, it is destined that this college will be forever recorded in history - the Black Eye.