Love Never Fails

Jin Xiu, King of the Central Heavens, seeks to help camellia demon Hong Ning achieve immortality, but their fates intertwine unexpectedly. At the Flower Festival, Hong Ning confesses her love and desire to be his queen. Advised that demons and gods cannot be together, she pursues immortality. Upon her ascension, she discovers Jin Xiu is set to marry another. Heartbroken, she gives up immortality to enter reincarnation and forget him. Jin Xiu defies fate to ensure her rebirth, determined to protect her. As spring ends, they meet again, bound by love, trials, and destiny.

(Source: MyDramaList)

~~ Adapted from the novel "When Spring Ends, I'll See You Again" (落花时节又逢君) by Shu Ke (蜀客).