The Hōjō Clan felt resentment towards the Date Clan after the Siege of Odawara for participating in the siege, instead of somehow helping them. Hideyoshi had no time to deal with the Date Clan, Masamune had no real choice but to give in to Hideyoshi's demands because he was the virtual ruler of Japan. What if the Date and Hōjō would have put aside their differences and possibly worked together? Is it possible the Tokugawa could join in on this alliance?