Around 8 AM on October 17, when dense fog in and around Kawanakajima cleared, the main troops of Takeda's forces was astonished seeing Uesugi's forces that should not have been there were in battle formation just in front of them
10日午前8時頃、川中島を包む深い霧が晴れた時、いるはずのない上杉軍が眼前に布陣しているのを見て、信玄率いる武田軍本隊は愕然とした。