An ordinary college student with an innocent personality acquired the "skill intrusion" system in an accident - whenever a case is encountered, the system will randomly insert an incredible skill, which may be mind reading, time suspension, or even culinary proficiency. However, each skill can only be used once, and the next one must be unlocked after solving the case. He originally just wanted to live a peaceful life, but he was involved in a serial disappearance case that shocked the whole city. The police are helpless, and the dark mastermind is closing in step by step. What's even more frightening is that the murderer always seems to be able to predict his actions in advance. Shen Yichen had to use random skills hastily in every crisis to find hope in a desperate situation. When he thought he had finally cracked the case, he discovered that he was just a pawn in a larger chess game. The secret hidden behind the skill system is far darker than he imagined...