Xue Tong, a student at Donghu University, is misunderstood as having cheated while taking the final exam.

Xue Tong helps Qi-Chi to receive a scholarship; Xue Tong's innocence is finally revealed, and his dislike towards Muchenghe grows.

Xue Tong's friends grow jealous of him since his roommate is very popular at school; Xue Tong's crush, Liu Qi, says hello to Xiaotang through Xue Tong.

Muchenghe helps Xue Tong take drunk Bai Lin to the dormitory; Xue Tong accidentally breaks Muchenghe's music CD.

Xue Tong and Muchenghe visit the planetarium together and look at various exhibits. On their way home, they come across an announcement for a Chinese-Russian cultural exchange event.

Feng Yu asks Xue Tong to give an open class. Xue Tong asks Muchenghe to teach an open physics class, and the two prepare class materials together.

The dormitory radio broadcasts the grim news that the world is about to end, and Bai Lin asks Xue Tong how she plans to spend her days.

Xue Tong and her friends are distressed because they have too many English class assignments; Xue Tong and Bai Lin follow Qi Qi and end up in an unknown place and get lost.

Xue Tong and Qi Chi are selected as candidates for the graduate school's selection process; Xue Tong tries to speak to Qi Qi after their physical test.

Liu Qi gives up his interest in Xiaotang and begins to show interest in Xue Tong; Xue Tong is taken aback by Liu Qi's sudden behaviour.

Xue Tong and Muchenghe finally go on their first date and have a great time riding amusement rides. They run into Zhang Yu and decide to hide their relationship.

Xue Tong spends time with Muchenghe and keeps coming home late, which makes his mother suspicious; Muchenghe suddenly falls sick.

Xue Tong plans a special surprise for Muchenghe on Valentine's Day. She prepares different types of food dishes and packs gifts for him.

Chen Yan makes coffee with unusual ingredients for Xue Tong; Xue Tong and Muchenghe travel to Malaysia and enjoy scuba diving.

Rumours start after someone posts a photo of Xue Tong and Muchenghe in the school community. Bai Lin asks Li Jiahang to delete her post about Xue Tong's relationship.

Xue Tong clicks a photo of Muchenghe and Bailin and shares it with them. Muchenghe's younger cousin Muhai feels things are fine between them, but Xiaotang thinks differently.

As Qui Qui leaves for school, Xue Tong and Bai Lin feel her absence; Xue Tong secretly prepares a gift for Muchenghe's birthday.

Xue Tong and Muchenghe get into an argument and later realises that she has prepared a surprise for him. Muchenghe gets upset and promises to never argue with her.

Xue Tong spends time with her friends after she breaks up with Muchenghe. Bai Lin and Xiao Tang try to comfort Xue Tong, but Xue Tong has difficulty hiding her complicated feelings.

Xue Tong is asked to work as an English trainee at the school newspaper; Liu Qi volunteers to serve the areas affected by the earthquake.

Pan Shimao hovers around Xue Tong, which makes Liu Qi feel uncomfortable; Bailin struggles after breaking up with Jungchang.

After Chen Yan returns to China, she meets Xue Tong's boyfriend, Liu Qi, for the first time; Xue Tong goes down to the countryside with Chi-Chi and other friends.

Ryu Chi gets caught up in an unpleasant incident and goes to the police station; Xue Tong helps Chen Yan produce subtitles for the video he is preparing.

Chi-Chi returns to school after a long break and attends classes with the third-year students; Xue Tong received positive reviews about the subtitles he produced.

The first episode focuses on the leads, Xue Tong and Mu Cheng He; it tells the story of their journey back to each other. We see how they grew over the years and how they came to be married, as seen in the last scene of the main series.

Zhao Xiao Tang and Mu Hai are tested in their relationship as real-world pressures set in.

Bai Lin and Song Qiqi then share the final episode where both overcome their own struggles entering adulthood, whether that be romantic relationships, friendships, and work-life after University.