Qi Yu has been autistic and self-loathing since he was a child. Han Tiantian, his neighbor's eldest sister, lights up his heart like a little sun. He has been paying attention silently since then. Behind the scenes, he drove away all of Han Tiantian's suitors, even skipping a grade in school to get closer to Han Tiantian's younger brother. He originally planned to confess his love after graduating from college, but unexpectedly, Han Tiantian promised to officially date his classmate Zhou Nuo before graduation. Qi Yu became paranoid and exposed Zhou Nuo's image as a scumbag, getting closer and winning Han Tiantian's heart step by step. Then the two separated due to a misunderstanding, Han Tiantian ran with the ball, and Qi Yu chased his wife forcefully, and finally they were consummated.