What would be the equivalent of the Holy Brittanian Empire's from Code Geass' Knights of the Round from Code Geass and the Brittianian Glynda Knights from Code Geass for an alternate history version of Japan where the 1868 Meiji Restoration didn't abolish the side branch of the main branch of the supposedly Shinto-pantheon descended, Manchurian/Manchu/Jurchen-Japanese noble, royal and priestly family that is the post 660-BC current reigning imperial family of Japan, the Imperial House of Great Yamato/the Minamoto dynasty that was also a Japanese samurai and noble clan of the Tokugawa clan-ruled, post-1603, pre-1868 de jure absolute constitutional imperial unitary parliamentary dynastic monarchy ruled by the clan head's of the main branch of the Imperial House of Great Yamato/the Minamoto dynasty as Emperors and Empresses of Japan but de facto feudal dynastic hereditary royal military dictatorship ruled by the heads of the Tokugawa clan as shōguns of Japan of the Tokugawa bakufu [tent government, more popularly known as the shogunate |bakufu|] but instead [the Meiji Restoration in this timeline] merely made the Tokugawa clan-ruled Tokugawa bakufu the unofficial Japanese local government with the main branch of the Tokugawa clan whose clan heads ruled over Japan as shoguns being split into the 5 Regent Houses of Koubuin, Ikaruga, Saionji, Kujo, and Takatsukasa from Muv-Luv as a result of, during and after the Meiji Restoration in this timeline, even though the main branch of the Imperial House of Great Yamato whose clan heads rule over Japan as Emperors and Empresses still got the restoration of imperial power through, as a result of and during the Meiji Restoration like in real life and the economic, military and industrial growth of Japan after, during and as a result of the Meiji Restoration still happened in this timeline like in real life, with history proceeding similarly to real life until around 1947, when Imperial Japan surrendered to the USA and the USSR after the terrorist bombings of Hiroshima and Nagasaki using nuclear weapons by the Americans in 1945, the Japanese allowed to keep their imperial shogunate government intact, although their power over the nation was lessened, compared to the Japanese government that was created to run the nation with a democracy system akin to real life like in canon Muv-Luv, and when the US-USSR Cold War started shortly after the end of World War II, Japan was pulled in by the United States to act as their main Far East base, with the island nation undergoing controlled rearmament, supported by US funding, to keep the Soviets in check like in canon Muv-Luv, although the BETA don't invade Earth from the moon in 1973 like in canon Muv-Luv, instead Japan gets back the entire Korean peninsula in around 1977-1979 through a series of referendums and treaties, Taiwan in around 1988-1989 and Sakhalin and the Kurils from around 1990-1991, as the CCP-ruled PRC in mainland China and the KMT-ruled Nationalist China once in exile on Taiwan and the Pengu Islands merge into a restored  pre Qing, pre-1368, post-1644-1662 crypto-Muslim, Han Chinese-Manchurian/Manchu/Jurchen Imperial House of Zhu-ruled absolute imperial dynastic royal monarchy of the Great Ming State/Great Ming Empire/“Ming dynasty”, [the Imperial House of Zhu-ruled Great Ming State/Great Ming Empire/“Ming dynasty”] ruling over the provinces of Hebei, Henan, Shandong, Shanxi, Shaanxi, Jiangsu, Anhui, Zhejiang, Fujian, Jiangxi, Hubei, Hunan, Sichuan, Gansu and Chongqing (modern-day city was part of Sichuan) in Han China as Manchuria, Inner Mongolia, East Turkestan and Tibet all break away from Han China, which is part of the reason for a US-Soviet War and then limited US-Soviet nuclear exchange in the 1980s that destroys both Cold War superpowers but leaves Western Europe, Central Asia and East and Southeast Asia relatively unharmed, making Japan into the global hyperpower. Take in mind Japan's samurai culture, and remember Japan never has and never will have Knights.