Sima Fu

Sima Fu is Sima Yi's younger brother, and a good friend of Cao Zhi. He fervently supported his brother, and nephews, Shi and Zhao, and even rode out to battle against Wu despite his old age. When Sima Yan replaced Wei with Jin, Sima Fu immediately retired as a commoner, declaring his loyalty to Wei.

Dynasty Warriors
In Dynasty Warriors 7, He will appear as early as Shu's later stages alongside his brother's forces, and will appear more often in Jin's story. In Sima Yi's conquest mode, he joins his brother in proving the superiority of the Sima family to the Zhuge family.

In Dynasty Warriors 8, he reprises his previous role, and will act as the replacement officer fir any of the playable officers in the "Coup 'd'etat" that are being used by the player

Quotes

 * "I have a question for you, Brother. Do you plan on swearing your loyalty to anyone?"
 * "If someone has the talent, I will serve them. But if they are a fool who cannot make proper use of my ingenuity..."
 * "That is no good! A proper retainer serves his lord to the bitter end."
 * "Fu, you won't make it through this chaos with such an attitude. It pains me to hear someone with your talent speak like that"
 * Sima Fu and Sima Yi; Dynasty Warriors 8

Historical Information
Born in Wen County, Henan, Sima Fu was the third of the Sima brothers or the eight Da (All of Sima Fang's sons had the character, da (達) in their courtesy names). Although he was talented, his intelligence and wisdom paled in comparison to his older brother, Sima Yi, whom Fu showered with praises. As he was a talented man in literature, he got along well with Cao Zhi, one of Cao Cao's sons.

In 253, Sima Fu led fresh reinforcements to relieve the siege of Hefei Castle, and he assisted Zhang Te in defeating the Wu army. Sima Fu would continue to defend Wei during the regencies of his nephews.

In 265, Sima Yan forced Cao Huan to abdicate the throne, and Wei was destroyed by Jin. After ascending as emperor, Sima Yan attempted to give his grand uncle a noble title, but Sima Fu declared, "I am, and always have been, a servant of Wei.", and retired without any titles. He was posthumously named "Prince Xian of Anping" in 272.

Romance of the Three Kingdoms
Sima Fu's is a major figure in the defeat of Cao Shuang. When Sima Yi takes Luoyang during Cao Shuang's absence, Sima Fu and Jiang Ji are the ones who draft the petitions accusing Cao Shuang of treason.