It includes the films Floating Melon (2015) and Ni Jing: Thou Shalt Not Steal (2013) and follows stories about characters that usually are ostracized and that must survive in the shadows of the city, since the Chinese society is contrary to diversity and individuality.

[2] Set in a contemporary city of China, Sunken Plum follows Li Wanjing, a transgender woman that must return to her home village in the mountains after learning of the death of her mother, since she must arrange the funeral, but cannot out her identity in front of family members and friends.

Supporting roles are played by Yu Yinmeng, who performed in a previous film of the directors, Floating Melon, Tian Peng, and Li Lierong.

Sunken Plum was distributed by Laboral Cinemateca, a company from the government of Principado de Asturias, and had its premiere at the 62nd Seminci, Valladolid International Film Festival on the 24 of October 2017.

The directors mention that "The production process was very complicated because it was not possible to obtain help from official institutions, neither from private funds because this type of works cannot have a normal distribution in China".

Knowing the great difficulties that this community must face to have a dignified life, lacking legal protection and suffering the contempt of a good part of society, we decided to write this story to draw attention to this unfair situation".

According to the directors, the objective of the film was "a story with a simple and direct narrative, but with an important emotional charge, so that the viewer feels empathy with the main character and understands her inner world.

The village used, "Bai Ta", is located five hours from Chengdu in the mountains, and the team needed to drive dangerous roads to reach the remote area.

The leading role was played by the male actor Gu Xiang, who took on the complex character, "Li Wanying", a transgender woman with strong family conflicts.

Gu Xiang interviewed transgender women and rehearsed the scenes for months with the directors until he felt ready to commence filming.