In order to find clues to the serial murder case five years ago, 17-year-old Shen Yi, a self-confessed high school detective, came to Nanyuan City alone, where he met a high school detective named Lu Congjiang.
The two worked hard to find the answer, and some subtle feelings quietly emerged.
But facing this relationship, the two brave people in the past chose to escape.
But due to various reasons, they reunited again
Purpose: love and justice