 Nemesis was clearly a member of the Kinniku clan, possessing several physical features associated with the clan.He is soon revealed to formerly be Sadaharu Kinniku, Tatsunori Kinniku's younger brother, making him Kinnikuman's great uncle.He possesses a prodigious wrestling prowess, including being capable of doing the Muscle Spark at a young age, leading him to be imprisoned and erased from history for fear of his strength.