However, realizing that the situation was not turning in his favor, Moriya hastily went to the Mimatanomiya Imperial House and surrendered to Prince Hikohito (according to one theory, this was said to be one of Katsumi's schemes to gain over Prince Hikohito in his faction as he believed the enthronement of Prince Hikohito, who did not descend from the Imperial family line of the Soga Clan, not to be of Umako's true wish).
しかし、状況が不利であることを知り、にわかに彦人皇子の水派宮に行き帰服した（一説には非蘇我氏系皇族である彦人皇子の即位を馬子が本心では望んでいないと考えた勝海が皇子の自派引き入れを策したのだともいう）。