The film was nominated in 2007 for the Japan Academy Prize for Animation of the Year (losing to The Girl Who Leapt Through Time) and was selected in the Out of Competition section at the 63rd Venice Film Festival.
Film ini dinominasikan dalam Japan Academy Prize for Animation of the Year 2007 (mengalahkan to The Girl Who Leapt Through Time) dan terpilih dalam sesi Out of Competition pada Venice Film Festival ke-63.