- Movie: Legend of the Demon Cat (English title)
- Romaji: Kukai KU-KAI
- Japanese: 空海 KU-KAI
- Director: Chen Kaige
- Writer: Baku Yumemakura (novel)
- World Premier: October, 2017 (TIFF)
- Release Date: February 24, 2018
- Distributor: Toho, Kadokawa Pictures
- Language: Chinese, Japanese
- Country: China, Japan
Kukai (Shota Sometani) is Japanese Buddhist monk. He is sent to the Tang dynasty in China to learn about Chinese culture and its civilization. He affirms his determination to learn everything about Vajrayana. Due to some case, he knows poet Rakuten Haku (Huang Xuan) and gets close with him. During that time, powerful men in the capital die continuously. Kukai inquires into these cases with Rakuten Haku. They face a big mystery made by history.
- Based on the novel “Samon Kukai Tou no Kuni nite Oni to Utagesu” by Baku Yumemakura (published July, 2004 by Tokuma Shoten).
- Filming began July 31, 2016 at a set in Xiangyang, Hubei province, China. Filming is scheduled to take 5 months to finish.