Shingen Takeda

Jolly yet armed with a sardonic wit, Shingen is a wizened and charming elder who has seen his fair share of wars. While no one has seen his entire face, his outgoing nature hardly keeps his thoughts from being a mystery to others, often bellowing a hearty laugh. Aware of his age, he tends to joke about teaching a lesson to the "youngsters" around him. His endless supply of tactics and eagerness to change makes him a liable danger to his rivals for power. In spite of his reputation, he strives to create allies at every opportunity and avoids annihilating his opponents whenever possible. He admires his own people greatly, apologizing to them if they fall due to his carelessness or choosing to avoid bloodshed if too many of his men are defeated.

To him, Kenshin is an interesting, young oddity who has the potential to surpass him someday. Their encounters keep him entertained, even if he takes small jabs at Kenshin for calling him "Nemesis." He extends the same regard towards Ujiyasu, though the latter retorts that Shingen's too old-fashioned to be his friend. Accepting the negative comments Ujiyasu throws at him, he nevertheless thinks fondly of their ties together. He finds promise with Sakon's progress, choosing to have the younger man join as a result.

(Source: Koei Wikia)