Mao Bing likes Zeng Jiajia very much, but there is one person who also likes Zeng Jiajia, and that person is Jiajia's cousin - Zeng Junqi. In fact, Zeng Junqi came earlier than Mao Bing, because Zeng Junqi and Zeng Jiajia knew each other when they were young.

Zeng Junqi often wears a black coat, his face is very dark, he is very handsome, he looks like a cold-faced killer, very cold. That's because he was holding a Japanese steel knife in his hand, and that Japanese steel knife was bought from a stall with pocket money when he went to the market in Su Street when he was a child, and it cost five yuan. Since then, he has become a well-known cold-faced killer.

Mao Bing's aunt Chen Rongcai was a drama on the stage when she was young, specializing in playing Zhu Yingtai. Mao Bing's aunt smiled at Mao Bing: "Mao Bing, I'll teach you how to make money, right?" Mao Bing replied honestly: "How to make money?" Mao Bing's aunt smiled: "Do you know Liang Shanbo?" People earn money by beating class clocks. You see, you also have the strength, why don't you go to the school to ring the class clock, and I'll tell the principal and give you some pocket money, so that you can eat spicy noodles. ”

Mao Bing thought about it and thought it was a good deal, so he agreed, so Mao Bing really went to the school to ring the class clock, and his aunt Chen Rong should have sent him an electronic watch, originally their family opened a store, and some had watches.

In fact, Mao Bing's Aunt Hua had already told Li Laomo, the principal of Zenglou Primary School: "We don't want to make money, we want to act, we want to have a good reputation, we want to be happy, and we want to be pompous." ”

Since then, in addition to attending classes every day, Mao Bing has to look at his watch, press the time and the end of class. The school's bell is placed at the top of the building, and a long rope is attached to a concrete column that reaches the door to the principal's office.

One day when Mao Bing was in class, Mao Bing stared at his watch, he didn't want to, he fell asleep in such a daze, and when he woke up, the time pointed to half past 4, and two hours had passed, Mao Bing hurriedly ran down the teaching building to ring the class bell.

Since then, the whole school has spread that the classmates call Mao Bing "Liang Shanbo", and some people want to bully Mao Bing, calling Mao Bing "Liang Fool".

Zeng Jiajia heard that Mao Bing earned pocket money at school and wanted to have fun.

Next to the principal's office, Mao Bing held Jiajia's hand and said to Jiajia: "Jiajiayo, I'll teach you, like this" dang, dang, dang" is a little slower, it's the end of class. In this way, "dangdangdang" is a little faster, it is a class clock, which is different. ”

Jiajia turned around and smiled, fell into Mao Bing's arms, and said with a gentle smile: "I like you to teach me the class bell the most." Then they hugged each other.