Made without the support of the Chinese government, making this the first independent animated film from China.
Part of writer/director Liu Jian's "Time Trilogy". The other two films are, the forthcoming Art College 1994 (2023) and the not-yet-produced Mr.19.
Writer/director Liu Jian financed the film by selling his house.
Entirely animated by director Jian Liu using a WACOM tablet, it took three years to complete.