On the other hand, a large number of powerful clans in Kyushu, including Taketoshi KIKUCHI, of Higo Province who had been on the Imperial side, Tanemichi AKIZUKI of Chikuzen Province, Korenao ASO of Higo Province, Takehisa KAMACHI and Ieyoshi HOSHINO of Chikugo Province, all sided with the Imperial side, resulting in a force of over 20,000 cavalry.
一方、宮方に味方した肥後国の菊池武敏をはじめ、筑前国の秋月種道、肥後国の阿蘇惟直、筑後国の蒲池武久、星野家能など、九州の諸豪族の大半は宮方に味方し、その軍勢は2万騎以上まで膨れ上がる。