After the Battle of Okehazama, Nobumoto MIZUNO and Sadatoshi HISAMATSU often visited Ieyasu entering Okazaki-jo Castle as envoy of Oda family to persuade him as much as possible in words to become the daimyo of the Oda side, however, Ieyasu did not accept their words so easily then they said that following the stupid commander Ujizane who did not revenge for Yoshimoto died in battle would surely end up Ieyasu losing his territory by the Takeda clan and the Hojo clan.
桶狭間の合戦後に、岡崎城に入城した家康の許に、織田家からの使者として、たびたび、水野信元、久松定俊の両人が訪問し、言葉を尽くして、和順を促したという、しかしながら、家康はなかなか応じず、討死した義元の仇も報じない愚将の氏真に従えば武田・北条にその所領を奪われるは必定。