Yi Sima

Courtesy name Zhongda. As the acting head of the prestigious merchant clan, the Sima family, even in his teens Sima Yi was acknowledged by many prominent clan figures as a genius strategist, whose foresights and darings top almost all others of his time, and can be said to rival those of the most brilliant military tacticians, the Eight Enigmas. He is also the advisor-commander of the infamous assassin squad, the Crippled Legion, and is friend to its current leader, Liaoyuan Huo. Despite this, he stays concealed most of the time, often under the disguise of a manservant, and only opts to reveal himself when the situation necessitates it. The 'feng' (鳳, lit. phoenix) of the series title (火鳳燎原, Huǒ Fèng Liáo Yuán, lit. Fiery Phoenix Burns Steppes refers to Sima Yi. It's also noted that his appearance bears striking resemblance to the Fifth Enigma, Zhou Yu's.