Qi Qianqian loves Zhang Junyang very much. He is the idol of the popular idol group Weathering with You, but her best friend Zijiang is a big fan of the same group Jiang Yutian. Qi Qianqian has a secret. In fact, she knows Jiang Yutian, who is her childhood sweetheart. However, when Jiang Yutian was in elementary school, he went to the United States and she promised to keep in touch with him, but he suddenly lost contact. Qi Qianqian felt abandoned, and she felt resentful towards Jiang Yutian, and developed hatred. She became Jiang Yutian's biggest hidden fan on the Internet. It wasn't until Weathering with You held a book signing in their local area that the two met again, but they didn't recognize each other. Until Jiang Yutian was seriously injured at a concert, the gears of fate turned again, and the two people's lives were intertwined again.
