Zhou Qi'an and Song Zhinian met on a trip and got to know each other because of an accident. Later, Song Zhinian fell in love with Zhou Qi'an unknowingly. Song Zhinian didn't know it at first. Zhou Qi'an discovered that the little guy liked him when Song Zhinian chatted with him. Later, I don't know why Song Zhinian and Zhou Qi'an confessed their love. Zhou Qi'an didn't know why he agreed to Song Zhinian's confession, maybe because he liked it. It didn't take long for Zhou Qi'an to find that he really liked Song Zhinian. But... Unfortunately, Song Zhinian fell ill: middle-to-late-stage gastric cancer. Song Zhinian did not tell Zhou Qi'an about this. Three years later, Song Zhinian and Zhou Qi'an broke up. Song Zhinian did not tell Zhou Qi'an why they broke up. After Song Zhinian's death, Song Zhinian told Zhou Qi'an about the matter, and Zhou Qi'an died a month later. Zhou Qi'an left a sentence in the book left by Song Zhinian: Little guy, I'm here to accompany you. If we meet in autumn, let us end in autumn. Zhou Qi'an didn't realize the words Song Zhinian left: Zhou Qi'an, I love autumn the most. Because we met in autumn, autumn is our anniversary.
Purpose: Happy every day