In December 2022, Keyi launched the documentary film "the Secret Garden by Grand Canal", directed by Xiao Han with the participation of Arthur Chen. In April 2023, the documentary movie was officially finalized. The film is the sister of the popular documentary "Masters in Forbidden City ", which focuses on the beauty of Suzhou's intangible cultural heritages, the real life of craftsmen, and the beauty of the finely crafted and elegant Suzhou. The creative team of the film focused on Suzhou's intangible cultural heritages, such as Kunqu Opera, Dongting Mountain Biluochun Green Tea production techniques, and Imperial Kiln Gold Brick production techniques, and explores the inheritance stories behind them.