Sion created the script after working with a large amount of unknown aspiring actors at a workshop
Mitsuru Fukikoshi, Tetsu Watanabe and Taro Suwa all worked together in Sion's earlier film Cold Fish
Canon Nawata is going to be in Sion's new film Prisoners of the Ghostland
Both Mitsuru Fukikoshi and Tetsu Watanabe worked together in Sion's earlier film Cold Fish