It is based on the 1973 short story of the same name by Yasutaka Tsutsui (a parody of the novel Japan Sinks, released the same year), which criticizes nationalism and racism.
This work draws inspiration from the 1973 short story "Japan Sinks" by Yasutaka Tsutsui, which is a parody of the novel of the same name. It criticizes nationalism and racism.