Who would be the shoguns of Japan after Tokugawa Yoshinobu and Emperors of Japan after Showa [ignoring Heisei and Reiwa, this is a fictional scenario] in a world where Japan conquered the Joeson Kingdom in Korea during the Imjin Wars against both Joeson and the Ming dynasty and made Korea like Okinawa along with seizing Sahlakin and the Kurils, conquering the Tungning Kingdom in Taiwan and the Pengu Islands in 1683, and the Meiji Restoration made the Tokugawa shogunate the local government of Japan itself with the main branch of the Tokugawa clan being divided into the 5 Regent Houses of Koubuin, Ikaruga, Saionji, Kujo, and Takatsukasa from Muv-Luv while the Great Japanese Empire formed as the government of Japan after the Tokugawa shogunate is the national government of Japan, with the Tokugawa clan heads ruling over Japan as its shoguns having their roles of shoguns adjusted from being primarily hereditary military dictators acting in the Japanese Emperor’s name to having a role which is roughly similar a hybrid of the European constitutional royal monarchs and the Germanic Reichskanzlers [Imperial/Realm Chancellors] while the Japanese Emperors and Empresses became imperial royal constitutional heads of state and heads of the armed forces with the power to select the Japanese Prime Minister from the winner of Japan’s democratic national multiparty elections and also preside over the National Diet during, via and after the Meiji Restoration but Japan continued immense industrial, economic, military, technological and cultural development after the Meiji Restoration like in real life, also defeated the Qing in the first Sino-Japanese War and the Russian Empire in the Russo-Japanese War in real life, but helped the Qing imperial court and Manchu nobility seize control of the Fengtian Clique from Zhang Zhuolin during and after the Xinhai Revolution, along with having Yuan Shikai assassinated when he forms the Empire of China in 1915, leaving the Empire of China Emperorless under the regency of the Anhui Clique until the descendants of the Ming dynasty’s reigning imperial family, the Imperial House of Zhu are enthroned as the modern Chinese reigning imperial family as was the goal of the Xinhai Revolution, but the Anhui Clique retains informal control of the Beiyang Government as the Empire of China’s local government after Japan joining the Central Powers lead to a Central Powers victory over the Entente, with the British Empire fleeing to Canada and the French fleeing to North Africa, Japan still forming the Qing Imperial family, the Imperial House of Aisin-Gioro-ruled Empire of Manchukuo in Manchuria in 1932 and the Genghis Khan-descended Imperial House of Borjigin-ruled Mengjiang in Inner Mongolia in 1939 in real life, but due to Chiang Kai-Shek being killed before he can launch the National Expedition and thus Nationalist China remaining in Guangdong and Guangxi and eventually becoming a independent Cantonese Republic that eventually becomes a restored Tungning Kingdom under Japanese protection, thus preventing the Second Sino-Japanese War? This is for a crossover fanfic between Muv-Luv, Code Geass and High School DxD where the BETA never reach Earth’s moon in the 1950s and thus never invade Earth like in canon Muv-Luv and the Holy Brittanian Empire fails in invading Japan but succeeds in conquering the USSR, and takes place in the 21th century AD where High School DxD’s protagonist, Hyoudou Issei is in fact the current Japanese Crown Prince who eventually becomes Emperor of Japan in a matter akin to Code Geass’ protagonist, Lelouch vi Brittania’s seizure of power in Brittania as the 99th Brittanian Emperor but as Emperor is more focused on reforms and managing the Co-Prosperity Sphere along with putting down KKK militants in the USA and Soviets in the USA/? You can make up names, era names, regal names and so on for the Shoguns and Emperors, just stick to real-life Japanese imperial family traditons and naming protocol along with a bit of Tang dynasty and Han dynasty influence since Japan considers itself to be the successor of both the Tang and Han dynasties, along with being the true heir to the Han Chinese civilization started by the Qin, solidified in the Han and given a golden age under the Tang in this fic.

The tall, slender and buxom, purple-haired, blue-eyed, calm and graceful but honest and selfless young Japanese noble heiress and current heiress of the House of Koubuin, Koubuin Yuuhi from Muv Luv is still the modern day shogun in the 21th century, with the Shogun before Yuuhi being Saionji Tsunemori from the House of Saionji in this fic.