The city is filled with countless urban legends. Strange incidents that occur in the midst of these legends lead people into a labyrinth... It is the five young detective hatchlings who take on these difficult cases. Overflowing with intellectual curiosity, they make the most of their abilities. They are full of intellectual curiosity and show their abilities to the fullest as they run through the city and get to the bottom of the mystery. And what lurks behind the scenes is a professional criminal planner... Through fierce battles with the enemy and encounters with various people, they are sometimes hurt, but they gradually grow up. This is a pop youth mystery that depicts the friendship and adventures of a group of talented detectives.