I'm currently trying an alternative strategy that I've read on this forum: Take all the provinces that surround Kyoto. If the capital is surrounded, you can apparently occupy all the Daimyo capitals (and Kyoto) in the next war and the "Daimyo disbanded" event should actually work properly. I learned the key to taking provinces from Japan is to make sure no other country becomes war leader. If another country does become war leader, you can still take provinces from Japan by negotiating with the war leader but it will likely be full badboy. So so far I've done this:
1.) Declared war on Japan and Ming at the same time (because Ming was guaranteeing Japan).
2.) Took Kyoto, giving me 100% warscore immediately, and then conquering two adjacent provinces.
3.) Sued for Peace with Japan, taking two provinces for 8 bb.
4.) approx 5 years later, I finish another war with Ming. Declared war on Xia (using violation of sphere CB) and Japan (religious war CB). A separate Xia war was necessary because it was guaranteeing Japan.
5.) Occupied Kyoto again, and the 4 remaining provinces surrounding Kyoto.
6.) Sued for Peace with Japan, taking 4 provionces for 4 bb.
So, if all goes as plan, one more war and I can annex Kyoto by occupying the Daimyo capitals and disbanding the Daimyo system. All I want is the capital anyway - I want the CoT.
1.) Declared war on Japan and Ming at the same time (because Ming was guaranteeing Japan).
2.) Took Kyoto, giving me 100% warscore immediately, and then conquering two adjacent provinces.
3.) Sued for Peace with Japan, taking two provinces for 8 bb.
4.) approx 5 years later, I finish another war with Ming. Declared war on Xia (using violation of sphere CB) and Japan (religious war CB). A separate Xia war was necessary because it was guaranteeing Japan.
5.) Occupied Kyoto again, and the 4 remaining provinces surrounding Kyoto.
6.) Sued for Peace with Japan, taking 4 provionces for 4 bb.
So, if all goes as plan, one more war and I can annex Kyoto by occupying the Daimyo capitals and disbanding the Daimyo system. All I want is the capital anyway - I want the CoT.