Just describe it here it can be any size and also you can explain it in any ways here is my story
My first campaign with the Chosokabe was amazing I chose the domination campaign so what I did was first conquer Shikoku after that expand into the mainland by fighting against the Kikkabate[who had 4 provinces and defeated the Mori]Amako[4 lands] and another clan which had I think 3 lands.So that was a pain in the ass but after gaining 16 provinces I made the Urukami and Yamana my vassals[really random and had to kill them off after destroying every other clan][Yamana betrayed me so I made them pay].but during that more pain came as Urukami my vassals declared war Against the Hattori[16 lands],Oda[14 lands] and Ashikaga Shogunate,I rejected it and tried to expand to Kyushu defeating Amako and Kikibate but then Hattori attacked me and my long 20 year journey[extra turns mod][8 turns per season][20+years too]of expanding to Kyushu and destroying the Hattori.I finally did it destroyed the Hattori,Amako and Kikibate but after that Oda who had Terrifying power and Spectacular economy[26 provinces]declared war on me and the Ito[who ruled the whole of Kyushu too]So while fighting against the Oda again[had a peace treaty while destroying the Hattori] I set out to conquer Kyush with my General forgot his name so lets call him Chuck Norris.Jr who has won 30 decisive battles during the whole campaign[no lie here]destroyed the Ito and became the ruler of Kyushu[so I just made him stay there to fend off Christian Rebels]I went to war with the Oda who destroyed my allies Hatakeyama and Takeda during my war with Hattori and so I attacked Oda but also the Ikko Ikki who respawned out of nowhere also fought with them after some 5 years I reduced the Oda to 15 provinces and declared war against the Ikko Ikki who were getting more powerful so when I went to war with them I conquered two of their lands which was easy but then when I went for the third one I discovered the Ikko Ikki had a cluster of full stacked army so I had 3 generals including the legendary Motochika conquer that land[during that time I was getting 160,000 koku per turn] and so I went to destroy both Oda nd Ikko Ikki after reducing the Ikko Ikki to 3 lands Ikko Ikki sent 20,000 soilders to the newest conquered castle fighting against my 12,000 soilders but we lost and Motochika died after that I signed I peace treaty with both clans and made alot of armies and during that the Oda betrayed me in the 6th turn of the treaty and attacked me so I also did the same with the Ikko Ikki and got my revenge and destroyed the Ikko Ikki after that I went to war against the Oda and the Honma and another clan so I destroyed them which took me 5 years to conquer 15 provinces and after that Oshu was the only region left and I went to war with the Mogami and destroyed them too[Fukushiwa was a pain in the ass] and then every province of Japan except Kyoto was mine and then I destroyed my vassals and went for Kyoto and easily conquered it and I lost jus 260 men too and so I became the emperor of Japan