In the Ishiyama war, he managed to ferry supplies from outside into the besieged Ishiyama Hongan-ji Temple to support his father who was holding the temple, in conspiracy with Terumoto MORI of Aki Province.
石山戦争では、外部から父の籠る石山本願寺を支えて、安芸国の毛利輝元と図って兵糧を石山本願寺に運び入れる工作を行う。