Orochi

Orochi is a surreal being who has the power to use the darkness and greed within people for his benefit, distorting their image of him into whatever they desire. Through this power, he can forcefully gain strongly loyal allies. He seems bored with actual administrating, leaving that up to his loyal strategist Da Ji. Of those who he has press-ganged into his service, he seems to respect Lu Bu the most, while Lu Bu is biding his time until he is powerful enough to slay Orochi and claim the title of the strongest for himself.
Orochi has a powerful desire to battle someone who can end his life, as hinted by various lines he speaks. It is possible that he seeks peace in death, perhaps as atonement for his own corruption.

(Source: Koei Wiki)