The story revolves around Vinh, the top performing student and Thu Khoa, the class monitor who is at the bottom of the class.

The first impression of Khoa and Truong about each other was not very good, both sides did not want to see each other's faces anymore, but the flow of life pushed them both to appear in the same extra class and from here many situations played out. It caused both of them to change from hate to love at any time. --Prequel of "You are my stupid boy" and Sequel of "Stupid boys, stupid love".

Trong Nghia and Nhat Minh have been close friends since childhood, but suddenly one day Trong Nghia realized that he had different feelings for his best friend. Will Trong Nghia reveal this feeling or decide to keep silent to protect the long-standing friendship? -- Prequel of "You are my Sunshine" and "You are my stupid boy".

Because he failed college so many times, Dang, a city dude, was taken back to his hometown by his mother to study under a village teacher. Here, Dang had the opportunity to meet and get to know people living in the village and learned many meaningful lessons that made his life seem to take a different turn.

Continuing the previous part, Quyen could not accept the fact that Khoa and Truong were together, she went to Truong's house to meet his mother because Quyen knew that Truong's mother was his only weakness at the moment. Still the same bossy attitude and contempt for Khoa, but here she clashed with Ms. Oanh - who hates people who despise others. -- Sequel of "Stupid boys, Stupid love" and "You are my Sunshine".