Xia Wuyou, who just entered college, is known as a "conspicuous person" - he gnaws cucumbers in class and talks about mountains and rivers in class, but he is only afraid of the new math teacher Xiang Han.
This man not only has a face that drives girls crazy, but he also always "targets" her: catching her going out of school to buy duck necks without permission, forcing her to be the math class representative, and even knowing the little secrets she hides in her pencil case.
But who would have thought that this seemingly aloof teacher would wait for her with an umbrella on rainy days, watch over her all night when she had a fever, and even use his job to vouch for her when she was falsely accused of cheating.
Xia Wuyou gradually realized that she seemed to be attracted to this "old man". The sourness when the confession was rejected, the sweetness after the misunderstanding was solved, and the chaos of cohabitation life - he would force her to eat mushrooms she didn't like, and would patiently cut her toenails when she hurt her feet; he would pretend to forget to bring her wallet to tease her, and he would pat her back gently when she vomited.
Pan Fannan's revenge and Xu Yan's disruption made this relationship full of thorns. But when Xiang Han said "I'll never leave again" and when he protected her under the umbrella, Xia Wuyou understood: It turns out that all it takes is Xiang Han to go from rejection to destruction.
