This game was never released outside Japan, on any system until Steam. The Japanese title translates to "The Blue Wolf and The White Doe - Genghis Khan" though Doe is often misgendered as Stag. This is the first of the Genghis Khan series from Koei, and as such is sometimes called "Ghenghis Khan 1", although this does not match with game releases in this series outside Japan on other systems.
Steam version https://store.steampowered.com/app/545000/_/