Remember many years ago, Lin Mo, a fledgling chemistry teacher, came to Luming Middle School to teach. On the first day of school, the teacher of the school mysteriously instructed him not to face his students. Despite Lin Mo’s confusion, he carefully opened the classroom door. As soon as the door was opened, the students were sitting upright and everything seemed calm. But then he was deceived by these seemingly ordinary illusions. The students joined forces to design and put him in a chemical laboratory, and burned textbooks outside the laboratory, wanting to smoke Linmo. Lin Mo was not in a hurry. He quickly used the materials in the laboratory to deploy explosives and opened the door. After the students were shocked, they saw a man coming out of the thick white smoke. Everyone was stunned by this scene, and the look at Lin Mo suddenly became admired.

In order to continue to search for clues, Lin Mo came to Luming Middle School, where the four girls had studied, and they had also worked in the middle school. Lin Mo and Sasha received information from the principal. The four girls were very good roommates, and they all missed the college entrance examination due to typhoid fever. In addition, the principal also recalled that Awin had publicly confessed to a class boy named Pei Shan but was rejected by the other party, so the boys looked at Awen differently. A Shui finally couldn’t see it, so she stood up for A Wen in public. She picked up a glass of water and rushed to Pei Shan, pouring the water in her hand to Pei Shan. Before leaving school, it was exactly after class time, Lin Mo hurried away. Sasha was confused at first, but she knew why Lin Mo was so out of the principal’s office. The bell didn’t ring at the end of the lesson. I only heard the radio loudly saying “Black Dog Teacher is here.” Then I saw many students rushing out of the teaching building and chasing Lin Mo with excitement, even the principal I also picked up the horn to encourage my classmates to catch up with Lin Mo. Everyone hoped that Lin Mo could stay. Seeing this, Lin Mo subconsciously took Sasha’s hand and ran out.

Combining these days’ clues, Lin Mo felt that things were not as superficial as they seem. In order to investigate further, he took Sasha to participate in A Shui’s funeral. At the funeral, a mysterious man suddenly rushed out and stabbed Qin Jun with a knife. Fortunately, Lin Mo noticed in time to avoid injuries. Lin Mo chased the mysterious man closely. Following the smell of disinfection water on the man, he eventually chased to the “idol workshop” where Pei Shan was. Here, they found a picture of classmates, but A Shui’s face seemed to be scratched by something. Then, they found a classmate’s record. The classmate’s record contained a lot of information from students such as Awen, Dinan, and Chaya. However, the page on Ah Shui only had a name, and a page was left on that page. After a long test paper. The main note of this kind of test paper is rose, the rose symbolizes love, the tail note is lemongrass, and the discourse is “love that cannot be spoken”. From this, Lin Mo speculated that A Shui and Pei Shanding had an unusual relationship. Sure enough, Lin Mo and Sasha blocked Pei Shan who worshiped alone in the cemetery of A Shui.

Lin Mo forced to ask Pei Shan why he had assassinated Qin Jun in public. After a confrontation, Pei Shan told Lin Mo that, in fact, A Shui and Qin Jun did not look happy and loving, and the relationship between the four sisters was far from what it seemed. Intimate. At a class meeting three months ago, Pei Shan met Ah Shui, and the two finally met to finally determine the relationship. Ah Shui even offered to divorce and be with Pei Shan. However, at the class meeting that day, Pei Shan heard in the toilet that Awen, Dinan, and Chaya threw away the gifts from Ashui and sneered at Ashui.

After an investigation, Lin Mo learned that the classmates ‘meeting that night, A Shui gave the remaining three perfumes, skirts and necklaces, which happened to be the wishes written by the three in the classmates’ records. Lin Mo and Sasha came to the Chinatown restaurant, but according to Auntie Clean, the three items were not found in the toilet. But when the two felt the clues were completely cut off, a waiter with a perfume smell came into their sight. It turned out that the three gifts were picked up by the waiter in the toilet. Just as the two were about to leave, Di Nan’s death came suddenly.