Guilstein is a 3D anime film based on Tamaki Hisao's manga, known for his adaptation of Star Wars: A New Hope. The story takes place in 2088, a dystopian future where humans have been transformed into the "Guilstein," creatures devoid of human souls. Characters were designed by Yasushi Nirasawa, a notable creature action figure artist, and Monkey Punch, the creator of Lupin III, supervised the script.