Dazui and Mimi went over the wall to help the old dog buy noodles, and they happened to be discovered by Chen Yuanyuan. Mimi immediately took out the guide to picking up girls, and sang a song to Chen Yuanyuan based on the guide. Finally, Yuanyuan was embarrassed and left. The old dog and Big Mouth train together, and Martin makes them leapfrog. At this moment, An Ran just came down to watch them train. So the old dog accepted it happily and began to leapfrog in circles. They danced for a long time, and Jiaojiao asked Ma Tian to stop them when they saw that they were working too hard. Ma Tian could not help seeing them like this, so she had to say that this is the case today.
The old dog returned to the classroom and clashed with Martin, and the two scuffled together. Finally, they were fined for cleaning, and the two began to quarrel again. The old dog told him that he knew Liu Wenqin . An Ran was very happy to hear that. So he chose the old dog in one-on-one mutual assistance so that he could take her to see Liu Wenqin. The old dog felt that An Ran had bad intentions, so he harassed An Ran, but An Ran resisted it. After class, An Ran went to see the old dog on the rooftop. An Ran pretended to be perfunctory to the old dog, so the old dog decided to take her to see his elder brother Liu Wenqin, but wanted to help him with his homework. Mimi took the cake and went to find Yuanyuan, but because the gift was a scarf made of his long trousers, Yuanyuan stuck the cake on Mimi’s face.
Jiaojiao asked Ma Tian to help her write a letter of dismissal, but Ma Tian saw her thoughts and resolved it perfectly. During the exam, the old dog asked An Ran to copy the answers for him, so the old dog got the first place in the class. The old dog was thick-skinned and wailed everywhere, showing off to Ma Tian. Ma Tian knew what was going on but couldn’t tell. An Ran and Martin helped the old dog buy stationery together. After An Ran gave the stationery to the old dog, the old dog was very happy and decided to take An Ran to see Liu Wenqin next class.
An Ran waited at the school gate for a long time and didn’t see the old dog. He returned to the classroom and found that the old dog looked unhappy. It turned out that it was Martin who wrote cursing the old dog in his notebook, so the old dog was all unhappy and even acted. Ma Tian and Jiaojiao couldn’t stand it anymore, so Jiaojiao hit the old dog with the book, and the old dog became behaved in an instant. Looking at Jiaojiao, Ma Tian felt that Jiaojiao was so powerful, and he admired Jiaojiao even more.
An Ran pretended to cry and wanted to coax the old dog well, and as expected, the old dog was very fond of this set and agreed to take her to see Liu Wenqin. The old dog took An Ran over the wall to see Liu Wenqin, but Liu Wenqin was not there, so An Ran was very lost. The old dog said that An Ran always looked like a good student, but An Ran disagreed, so he put up a pose in front of the old dog and did a dance. This stunned the old dog, who sent An Ran home and saw An Ran playing the piano.
After returning home, the old dog told Dazui that they were rich in An Ran’s family, and wondered if they would not like them if they had no money. Jiaojiao felt that the old dog was afraid that An Ran would despise him for being poor. The old dog felt that Jiaojiao didn’t understand him. The next day, Martin took the old dog and the others out for a run. On the way, they met the senior’s mother and was chased by the urban management, so he helped the senior’s mother push the stall together. The old dog saw Ma Tian helping them together, so he thought Ma Tian was pretty good, so he decided to train on time tomorrow. From now on, they train very seriously every day. An Ran bought them drinks and invited them to her house for her birthday.
The old dog thought about what gift to give to An Ran. Jiaojiao said that she felt An Ran was anemia, so she asked the old dog to give her pig liver. On An Ran’s birthday, Old Dog and Jiaojiao came to An Ran’s house. Martin gave An Ran a cake and Big Mouth gave An Ran a book, so the old dog also gave An Ran pig liver. An Ran was shocked when he saw it, and the old dog asked An Ran’s mother to stir-fry the pig liver.
At dinner time, An Ran’s father accidentally said in front of the old dog that the old dog’s tutor was not good. So the old dog and they both left angrily, and An Ran found the old dog to apologize to him. The old dog took An Ran to an alley and bought a small cake for An Ran. Suddenly they learned that Liu Wenqin was back, so the three met. Liu Wenqin was stunned when he saw An Ran.