But he changed his diplomatic policies and shifted to support Kagekatsu (the Koetsu Alliance (an alliance between the Takeda clan in Kai Province and the Uesugi clan in Echigo Province)) by marrying his daughter Kikuhime off to Kagekatsu.
しかし、外交方針を転換して、妹の菊姫を景勝に輿入れさせ、景勝の支持にまわった（甲越同盟）。