If our daimyo is to become Shogun - military ruler of all Japan - we must defeat the current Shogunate, the Ashikaga clan, capturing and holding the capital of Kyoto for four seasons. At this point the Emperor will declare our clan leader Shogun. We can make a bid for the Shogunate at any time, although the current incumbent may pre-emptively attack us if we become too powerful. War with the Shogun for either reason may result in other clans declaring war on our own in support of the status quo.