Yue Lao is a god of marriage and love in Chinese mythology. He appears as an old man under the moon. Yue Lao appears at night and "unites with a silken cord all predestined couples, after which nothing can prevent their union." He is immortal and is said to live either in the moon or in the "obscure regions", the Chinese equivalent of Hades. His legends serve as the basis for the Red thread of fate.

Till We Meet Again is a 2021 Taiwanese romantic fantasy comedy film, based on the novel of the same name by Giddens Ko. Directed and written by Giddens Ko, and starring Kai Ko, Gingle Wang, Vivian Sung and Umin Boya, it had its premiere at 25th Bucheon International Fantastic Film Festival as opening film on 8 July 2021, and was released theatrically on November 24, 2021, in Taiwan. It is also available for streaming on Disney+ in selected regions on April 2, 2022.