One of Zhenhua's trilogies, this love is unforgettable, yet no one knows it. Because of a single, lasting encounter when she was younger, Luo Zhi has had a crush on Sheng Huainan for eleven years. His appearance was so radiant, and since then, Luo Zhi's diary has become a one-sided love story that belongs to her alone. Because of Sheng Huainan, Luo Zhi followed him all the way and was admitted to his university. Because of multiple encounters, Luo Zhi and Sheng Huainan finally approached each other...