(Stacked armor!!! Main sufferer and main attacker depend on the plot)
Pre-college student Fei Jie suddenly plans to join the school's reasoning club (president Cheng Zai Zheng). When he joins the club, he will solve a mystery adapted from a thirty-year-old unsolved case.
After Fei Jie suddenly discovered Cheng Zaizheng's little thoughts, he wanted to explain it to him face to face, but the two of them were accidentally involved in a long-planned murder. The storm never stopped, and they experienced puzzles again and again together. In the abyss that no one can see, they try their best for each other and seek the truth. At the same time, they also give birth to different feelings that no one knows and can only hide in their hearts. But in order to achieve the original goal, one party had to put an end to all this absurdity...
Purpose: abide by laws and regulations