Huang Di, the Yellow Emperor, is a legendary ruler and the ancestor of Han people in China. According to legend, he fought against Chi You, the God of War, at the battle of Zhoulu and won securing the Central Plains of China of his people. He also fought against the giant Xing Tian. Legend has it that he also encountered a Bai Ze, who described to him all the 11,520 types of monsters, shapeshifters, demons, and spirits in the world, which was later recorded in the book "Bai Ze Tu" (a sort of Demonic Compendium if you will).
"The legendary Yellow Emperor of China who is thought to be the founder of Chinese civilization. When his mother Dubhe became pregnant with him, she began to glow brightly, and the pregnancy lasted 24 months. He is famous for inventing several things, lending his talents to creating houses, clothes, wagons, boats, music, and medicine."
—Soul Hackers 3DS Compendium
Huang Di can be obtained if Zeed is level 80 or higher and fused with Xi Wangmu.
Huang Di is the highest-leveled Sub-Persona, even higher than Lucifer. His special fusion is unlocked with the Ineffable Miter item, obtained by mapping out the fourth block of the Theater District. His fusion requires Chi You, Futsunushi, and Zaou-Gongen, and is host to the unique skills Empyrean Storm, Fury Order, and Focus Order.