At 18, Zhang Shengyu was an ordinary girl who loved to smile and was determined to see things through once she made up her mind. A chance encounter over a reserved seat in the library brought her face-to-face with Xiao Shizhou, the boy who pushed her away but secretly remembered her favorite drink: 30% sugar with coconut jelly. He was a boy of few words, accustomed to swallowing his worries and simply saying, "I'm fine." But after receiving a call from his father telling him to return to his hometown after graduation, he began hiding every hardship behind his silence. At 26, they meet again. Both are still standing where they once were. All that is missing is the conversation they left unfinished five years ago. From then on, this is not a story about rekindling a broken relationship, but about crossing thousands of mountains and rivers to pursue one another. For the rest of our lives, this time, I'll be the one waiting for you—and waiting for you to turn back.