Write an realistic, plausible alternate history scenario set on the world of the alternate history scenario with no references to the real world, OTL, or even to the fact that this is an alternate history scenario after all in the form of a lengthy, descrptive, exposition-filled real documentary history book scenario set in the world of the alternate history scenario, in which the death of Chiang Kai Shek in 1975 and Mao Zedong in 1976 lead to a power struggle within both the Chinese nationalist, Han supremacist, Han nationalist Chinese Communist Party-ruled de jure Marxist Leninist socialist republic but de facto Han nationalist, Han supremacist and Han imperialist totalitarian military dictatorship of the People's Republic of China ruling over [the East Asian territories the PRC controls] Han China, Guangdong, Guangxi, Yunnan, East Turkestan and Tibet from Manchuria and Shanxi since 1949, which [the PRC] Mao had [the PRC] ruled as both its [the PRC's] first and founding fascist dictator [Mao] from 1949 until his [Mao's] death and the Han nationalist, Han supremacist Leninist Stalinist Kuomingtang-ruled Nationalist China/Second Republic of China which [Nationalist China] Chiang had [Chiang] ruled [National China] as Generalissmo [Chiang] from 1928 and even during the period of its [Nationalist China's] exile in 1949 on Taiwan and the Pengu Islands after [Nationalist China] losing the Chinese Civil War to the CCP and what would become the PRC as Mao's chosen successor Hua Guofeng battled the post 1947, pro Soviet, pro American and pro KMT and pro Nationalist China Cantonese nationalist Clique in mainland China headed [the post 1947, pro Soviet, pro American and pro KMT and pro Nationalist China Cantonese nationalist Clique in mainland China] by [the leader of the post 1947, pro Soviet, pro American and pro KMT and pro Nationalist China Cantonese nationalist Clique in mainland China] Deng Xiaoping, which [the power struggles in both Nationalist China in exile after Chiang's death and in the PRC after Mao's death] lead to East Turkestan, Tibet, Inner Mongolia and even Yunnan breaking away from the PRC along with Manchuria, leaving the PRC in charge of Han China alone. 
The CCP is [the CCP] reabsorbed into its [the CCP's] parent political organization, the Han nationalist, Han supremacist, Han fascist conservative political organization adhering to Dr Sun Yat Sen's three principles of the people, nationalism, democracy, and the livelihood of the people (or welfarism) [the Chinese political organization the CCP broke away from], the Young China Party [YCP], which [the YCP] was [the YCP] named [the YCP] after the now- infamous Young Turks in the now long dissolved Turkish Imperial House of Osman-ruled Ottoman Empire, [the YCP] having followed the KMT and the ROC into exile on Taiwan in 1949 but [the YCP] returning to Han China after the PRC's overthrow by request of moderates within the CCP, [the CCP's remerger with the YCP] becoming [the CCP as part of the YCP once more] the YCP's ultra-nationalist left-wing [the CCP as part of the YCP once more] again as the YCP becomes the governing political organization [the YCP] of post-Mao, CCP-ruled Han China.

The millenianist Chinese folk religious sect focused on militant self-defense and tax resistance along with romanticised monarchism, wishing to restore the pre Qing Han Chinese Imperial House of Zhu-ruled Great Ming State/Great Ming Empire/"Ming dynasty" as the government of China, the Yellow Sand Society continues to grow in strength and [the Yellow Sand Society] increase membership and support, both among the Han Chinese peasantry and compromised government officials and [the Yellow Sand Society] overthrows the PRC in 1980 with the help of compromised elements of the CCP, the PRC's combined land, sea and air combat forces, the People's Liberation Army, the combined protection service for the elite section of the CCP, domestic secret police agency and border control division of the PRC, the Ministry of State Security, the paramilitary organization of the PRC's government  primarily responsible for internal security, riot control, counter-terrorism, disaster response, law enforcement and maritime rights protection, the Chinese People's Armed Police, along with the Triads, who [the Triads] have [the Triads] switched from the KMT and Nationalist China to the Yellow Sand Society due to their [the Triads'] initial formation as a means to restore the Great Ming State to power in China.

The Yellow Sand Society is forced to compromise with the YCP, [the Yellow Sand Society] restoring the Beiyang Government of the first Republic of China in the form of a restored Yuan Shikai-founded Empire of China as an Islamic sultanate under Sharia Law with the surviving descendants of the Imperial House of Zhu being reenthroned as the Chinese Imperial family in the place of Yuan Shikai's descendants, who are absorbed into the reenthroned Imperial House of Zhu. 

This restored Empire of China ruled by the Zhu instead of Yuan Shikai's descendants and is still officially referred to in English as the People's Republic of China but is referred to as the Empire of China or the Empire of the Great Ming in traditional Chinese.

 It flies the Beiyang Government's five-color flag with a golden-rayed, red sun version of the Nationalist China white sun emblem with the Chinese character for "Ming" in the center [of the Red Sun] in the middle [of the restored Empire of China's] flag, [the restored Empire of China] uses the Beiyang Government of the Republic of China's and the initial Empire of China's twelve symbols national emblem as its national emblem, uses the Wuchang Uprising flag as its Army flag and a version of Nationalist China's iconic Bue Sky, White Sun, and a Wholly Red Earth flag with a yellow sun, red inner rays and white outer rays as a tribute to the original Ming trade flag, a blue banner with a yellow sun with red rays. 

Yuan Shikai's descendants are absorbed into the reenthroned Imperial House of Zhu via concubine, polygamy and adoption as a means of forming a unified post 1644 Chinese imperial house and also to prevent any succession claims. The pre-Genghis Khan-descended Mongolian Imperial House of Borjigin-ruled Great Mongol Nation/"Mongol Empire" and its [the Great Mongol Nation's] successor state ruling over much of Siberia, parts of Central Asia, Inner and Outer Manchuria, Han China, Guangdong, Guangxi, Yunnan, East Turkestan and Tibet from Greater Mongolia, the Genghis Khan-descended Mongolian Imperial House of Borjigin-ruled Great Yuan Empire/Great Yuan State/Yuan dynasty, [the pre-Mongol Empire and pre-Yuan dynasty] and the pre-Manchu Imperial House of Aisin-Gioro-ruled Manchu-dominated Great Qing Empire/Empire of the Great Qing ruling over Han China, Greater Mongolia, Tuva Guangdong, Guangxi, Yunnan, East Turkestan and Tibet from Inner and Outer Mongolia, Ming era [the pre-Mongol Empire, pre-Great Yuan, and pre-Qing] Han Chinese aristocracy, monarchy and nobility is [the pre-Yuan Mongol Empire, pre-Great Yuan, and pre-Qing Han Chinese aristocracy, monarchy and nobility] subsequently restored, restructured, readjusted and modified for the modern world of the late 20th century,  [the pre-Yuan Mongol Empire, pre-Great Yuan, and pre-Qing Han Chinese aristocracy, monarchy and nobility] being  [the pre-Yuan Mongol Empire, pre-Great Yuan, and pre-Qing Han Chinese aristocracy, monarchy and nobility] merged with the system of peerage Yuan Shikai had [Yuan Shikai] created when he [Yuan Shikai] formed the Empire of China in 1915. 


This restored Empire of China is a provisional authoritarian absolute Imperial unitary monarchy under military dictatorship from 1981-1985, and then a constitutional parliamentary democratic absolute federalist unitary Imperial Royal monarchy with free and fair, democratic multiparty elections from 1986 onwards, being known as the Empire of China in both traditional Chinese and English onwards as well.

The Imperial House of Zhu-ruled restored Empire of China has an informal tributary status with Japan akin to the Beiyang Government-ruled First Republic of China's final incarnation as the WW2 era Japanese protectorate of the Reorganized Government of the Republic of China under Sun Yat Sen's protégé and rightful heir, Wang Jingwei [ Sun Yat Sen's protégé and rightful heir]. Sun Yat Sen is still honored as the father of the nation and his three principles of the people play a key role in the government of the nation, but its real founders are considered to be Shikai, Jingwei and controversially Mao.