All matter in the universe affects each other, Newton said universal gravitation, Einstein said the theory of relativity, and the six degrees of separation theory in social sciences. Do you believe in fate? No, but I believe in fate. What is love? For Zou Yimu, a top student in clinical medicine, love is just a simple chemical reaction in the brain, so he believes that love is just destined to meet another person in this space and time, and then produce a chemical reaction. It wasn't until he met the girl he liked and she liked him that he discovered that love is really a relative thing. "Zou Yimu, are you a straw boat? You borrow all the bitches in the world. My liking for you is my own business and has nothing to do with you. My life, whether I like you or not, is my own business. You don't need to emphasize your sense of existence in front of me. Who are you? Why do you ask me to care about you! I care about you!" "Lin Yishu, just keep flirting with me until the end. "What does it mean to like me? It's your own business. I'm a bitch, and that's what you force me to do. Didn't you ask me who you are? I'll tell you right now -" To chase or be chased, to wait or not to wait, to love or not to love, to work hard to stay together or to leave silently, in front of two novices in love, it became a checkpoint one after another, and finally understood the relativity of love.