In 1348, during the Shohei and Jowa eras, he went on his first military campaign and returned to Kyoto victorious, having won battles against the forces of the Southern Court (Japan) in various regions, including Kii Province.
正平(日本)3年/貞和4年（1348年）に初陣を行い、紀伊国など各地で南朝(日本)勢力と戦い戦功をあげて帰還する。