Toimuro is one of the last two Modern Era provinces (the other being Hiromaguchi), accessible after taking control of Kibakuguchi. Taking over Toimuro unlocks the ship (requires 100,000 and 20:50:00 to take) leading to the Postmodern Era continent map, and towards the first two Postmodern Era provinces, Cai Chet Nui and Rung Chien Dau.
If previous sectors acquired by negotiation:
Emperor Hisao Hito wants to negotiate the terms of a pact with you.
If at least one sector taken by force:
Emperor Hisao Hito will unleash the power of his magnificent empire upon you!
Hisao Hito is invincible!