A senior student in the police academy was sent to work as an undercover agent for a criminal group. However, at the last critical moment, he was discovered by the leader of the group. He forcibly drank the group's newly developed drug and lost his memory...
Then he embarked on the road of detective due to a strange combination of circumstances.
But no one could have imagined the group of people arrested before. It's just the tip of the iceberg of the entire criminal group, and the so-called leader is just a minion. The real mastermind slowly emerges from case to case. Can he escape death again...
Pure crime-solving reasoning, no cheats.