Lin Zhaosheng is a graduate student at Sanwei University. He is a genius in mathematics. At a young age, he achieved something that no one else could achieve in his life. He was very attractive, and was valued by Professor Zeng, and fell in love with Qiuyue, the school flower. Anyway, he should have a bright future.

Unexpectedly, Lin Zhaosheng's graduation thesis was suspected of plagiarism, and the genius became a plagiarism thief. The school decided to expel him. It rained all night, and Qiuyue died in childbirth. Lin Zhaosheng's bright future has become a bubble phantom, and he has become a single father. In order to take care of his daughter Lin Zhaori, he gave up mathematics research, a genius who might have changed the world, and finally had to live in a middle school as an accountant.

Even if the career is not smooth, over time, Lao Lin's health will not work. When he was young, he had an accident. Although he was not seriously injured, he was hit hard on the head. From then on, Lin Zhaosheng suffered from Alzheimer's disease. One rainy night, Lin Zhaosheng was hit in the head by a gangster with a hammer. The old and new injuries were superimposed, and his memory declined completely.

Lao Lin is only in his early 40 s, and his favorite mathematical research has not yet been decided. The audience doesn't want to see the kindest and gentlest father off the production line, but this situation is irreversible and cannot be cured at present. Lin tried his best to delay Lao Lin's death.

So there is really no way to help Lao Lin out of trouble? In fact, there is, and the screenwriter has already made preparations in advance. There is a parallel world in the basic law of genius. Strawberry world and cheese world are different time and space. There are corresponding people and things in the two worlds, but their fate has changed a little. Pei Zhi in strawberry world is a boxer, while Pei Zhi in cheese world insists on learning mathematics.

Lin Zhaosheng suffered from Alzheimer's disease in strawberry field. In the world of cheese, he passed his old age unharmed and disease-free Theoretically, Lin Zhaosheng, from two worlds, would not get sick as long as he crossed into the past and avoided the accident in the strawberry world.

However, due to the rules, the crossing can only be carried out in different timelines, and both formulas are used up. Lin can't go back to the past sooner or later. How can we change the car accident? The screenwriter has long thought of this. The past of the strawberry world can only be adapted by people in the cheese world. This person is Pei Zhi.

The crossing of Lin was planned by Pei in Cheese World. Remember in the first episode, Pei Zhi woke up at a loss in the boxing gym? By this time, Zhi Peizhi had crossed over. The purpose of his trip is to send a group photo to the Olympic Mathematical Training Camp. After getting this photo, Lin can only start crossing for the first time, so that they can meet in the cheese world.

At that time, the audience couldn't understand Pei Zhi's muttering lines. Only then did they understand that "Lin Zhaori, we will meet soon" means that Lin Zhaori of Strawberry World will meet Peggy of Cheese World soon.

We still don't know how people in the cheese industry crossed over, but what is certain is that cheese Pei is not the first time to cross. After watching the Olympic math class, Zhipei fell in love with strawberry grove. In order to see his lover again in another space, he exhausted what he had learned and finally came up with a way to cross.

Pulling Lin into the cheese world and establishing a bond is only the first step. After her return, Zhipei will travel to the strawberry world again, so that they can be together forever. On the eve of the model contest, Zhi Peizhi began to work. Strawberry Peggy suddenly fainted in the ring and was replaced when she woke up.

However, no matter how similar Pei's performance is, Lin still saw through Pei's change at a glance, and Pei from two worlds began to compete for her body. Zhi Pei is gentle and kind, and his love for Lin Zhaori is beyond words. He thinks he has won the game. He doesn't know that Lin Asahi has always liked strawberries for intellectual development.

Knowing that he lost, Zhi Peizhi chose to quit and return to his own world. He has mastered the method of crossing. The last time he crossed the scene of Lin Zhaosheng's car accident in the strawberry world, it changed the fate of the old forest being hit and triggered the butterfly effect.

Lin Zhaosheng doesn't have Alzheimer's disease, so he continued his math research. With his grades, he didn't become an accountant, didn't close the window of the accounting room in the middle of the night, wasn't injured by Bao's father, and wasn't hospitalized. Lin did not erase the formula on the wall with grief, nor did he cross the world line opened by Zhipei, but he finally closed it himself.

Finally, in the strawberry world, Lin Zhaosheng survived smoothly. Lin never stuck to her dream of mathematics, but she met Pei Zhi, who later became a boxer. The world is so big, but so small.