In the youth of high school, a male and female student (Jiang Zhinan) and a female student (Zhang Linting) had a crush on each other while studying and living with each other. Due to their shyness, they could not tell each other the words that the other liked about each other. When they were about to graduate in their senior year of high school, they became strangers due to a misunderstanding, and no one took the initiative to talk to each other. When they went to college, they discovered that they had actually enrolled in the same college. It was only in college that the two of them finally spoke out what was in their hearts. Then they started falling in love in college, but their love was not always smooth sailing. Youthful and ignorant, jealous, they interpret a heart-wrenching love-hate relationship and show different lives. Who is the true other half of them?