Also known as: 司马懿, 司马仲达, 司馬懿, SiMa_ZhongDa
Sī Mǎ Yì (司马懿), courtesy name Zhòng Dá (仲达), a Cao Wei general and politician. His descendants eventually overthrew Wei, formed Jin and unified China for a brief period (until they were kicked southwards by northern invaders because of the state's own initial weakness and civil war ).
In Romance of the Three Kingdoms, he was well known for his rivalry against ZhuGe Liang. This is no different in Shin Sangoku Musou. His Yokoyama Mitsuteru counterpart is best known as the source of the ”Wait. Don't be upset. This is ZhuGe Liang's trap” meme.