The was the first defeat suffered by Takeda Shingen, and the first field battle in Japan in which firearms were used. Takeda Shingen met up with his force that had taken Shika castle, and led 7000 men north to face the threat posed by Murakami Yoshikiyo. Shingen's vanguard was led by Itagaki Nobukata; when they charged head-on into Murakami's vanguard, the charge was absorbed, and Itagaki was killed.