Fate/Grand Order

His family name was Xiang, given name Ji, and courtesy name Yu. In Proper Human History, he was a conqueror who defeated the Qin dynasty and fought against Liu Bang in a bid to rule.
Although he boasted many military accomplishments, the countless atrocities committed under his harsh rule ultimately led to his forces' destruction. He was mockingly described as possessing "the courage of a peasant and the kindness of a woman."

He pursued neither academics nor martial arts as a child and studied only basic military tactics, but his natural talents alone apparently led him to power.

This conqueror's military prowess in the Lostbelt is beyond what any mere human could be capable of. He sweeps across every battlefield like a storm, able to engulf even great armies. Truly, he is a conqueror of a realm surpassing human intellect and morality.

As for the truth of what he was...

Height/Weight: 310cm, 480kg
Origin: History and Lostbelt
Region: China
Alignment: Lawful-Balanced
Sub-Attribute: Human
Gender: Male
As the Chinese Lostbelt was what led to the connection with Master, he was summoned differently than the humanoid Xiang Yu from Proper Human History. The man-horse tactical body was assembled collecting the best armaments developed by the Synchronized Intellect Nation's sage arts cybernetics.

『Mountainous Strength, Conquering Might』
Rank: C
NP Type: Anti-Army
Range: 1 - 5
Maximum Targets: 50

Strength to Pick Up Mountains, Might That Conquers the World.
The realized military art of the renowned warlord Xiang Yu, engrained on the world now as an idiom. Had he been summoned in humanoid form, the Noble Phantasm would have worked as an anti-personnel attack, but when he was transformed into a monstrous man-horse by the Lostbelt, his militant strength expanded into a weapon of mass murder.

Stories describing Xiang Yu had been passed down throughout the ages as a prodigical yet foolilsh conqueror. Yet his true character was not something that could be described by laymen in the first place.

He was a cyborg based on Nezha's remains, which were found and collected during Qin Shi Huang's travels in search of the sage world. Xiang Liang, after seizing the cyborg, claimed him as his nephew Xiang Ji.
Even after Xiang Liang's death, he remained as artificial intelligence driven to execute his initial purpose...the swift actualization of peace reiging the land. However, his methodology in reaching said goals completely deviated from human morality.

In order for the next leadership to swiftly rise to power, he executed devastation and massacre for the purpose of simplifying and narrowing the Chinese strategical map. From a logical point of view, his actions were nothing but futile tyranny executed by a demonic king.
But in the end, the turmulous Chu-Han contention lasted only four years, and Liu Bang, who was just one of the many minor officers, managed to elevate himself to become the Gaozu (High Founder) of the Han Dynasty.

In the Lostbelt, where Qin Shi Huang did not fall, he retained the code name "Kuaiji Zero" and was properly utilized by the emperor to aid in the endeavor for world domination.
His foresight, based on high-speed calculations, enables him to function as an invincible weapon on the battlefield. He was the progenitor as well as the banner bearer for the empire's mechanized corp, and he ultimately helped realize the long-desired Synchronized Intellect Nation of SIN.

With his unique temporal sense due to foresight, Xiang Yu's thought process is remarkable and unconventional compared to his peers. Ordinarily, he is silent as a tree, but the minute his foresight catches a glimpse of chaos, Xiang Yu will attempt to eradicate the cause with all the ferocity of a raging storm. His logic cannot be comprehended by laymen who do not perceive the future, which is why Xiang Yu as a Servant was designated to be a Berserker.

With many Heroic Spirit fates converging and its connections with multiple Singularities, Chaldea's special circumstances greatly interfered with Xiang Yu's foresight. This is when he finally realized that humans can live in the now without being bound by the future, and he gained the ability to experience the element of surprise and joy, typical of the experience of any living creature.