Adapted from the novel written by Ba Yue Chang An, Unrequited Love (暗恋橘生淮南) stars Hu Bing Qing and Hu Yi Tian. The story follows our heroine’s one-sided romance for her childhood friend for fifteen long years. They are childhood playmates and attend the same school for many years. Beginning in high school, their friendship takes a dim turn as she focuses more on her studies. When they meet again in college, she still carries a burning torch for him. Girllllllll! An excursion to Red Canyon Valley rekindles their friendship and sparks begin to fly ~
From what I know, there’s another drama adaptation of the same novel which aired in 2019 with Zhao Shun Ran and Zhu Yan Man Zi. You can stream it on netflix.