Finally, he won Takemitsu KIKUCHI or Korenao ASO in Higo Province over to his side, and entered Waifu-jo Castle to open Seiseifu fortress in 1348, which was his start-up of Kyushu-keiryaku (governing the Kyushu region).
ようやく肥後国の菊池武光や阿蘇惟直を味方につけ、正平(日本)3年（1348年）に隈府城に入って征西府を開き、九州経略を開始した。