The story mainly focuses on the love entanglement between He Yimu and Xia Xiaohe. Because of the same family background, the 8-year-old boy He Yimu developed a love for Xia Xiaohe of the same age that exceeded his peers. The two met in autumn but had to break up in another autumn because Xia Xiaohe's mother was seriously ill. The boy's "love" was buried in this autumn. Ten years later, He Yimu, who had already become a well-known painter, met Xia Xiaohe again, only to find that Xia Xiaohe had become a "little gangster." The boy wanted to change the girl, but found that the girl's unruly appearance concealed a heart of "protecting her beloved." The two met again in autumn, but the ending was already doomed. . . . .