Eiji Yoshikawa, a modern Japanese popular literature writer, created historical novel San Goku Shi, which is the adaptation version of Romance of the Three Kingdoms, during Japanese war of aggression against China. From a frequenter of “Fortnight Community” organized by Japanese army after September 18th Incident, to a special correspondent of newspaper office, and then to a member of “literature troop” dispatched by the Japanese government, Eiji Yoshikawa’s support for the war synchronizes with the progress of the war and his view on war has been implanted in his novels. Specifically for San Goku Shi, his view on war is displayed by two aspects: the first is the rebuilding of Cao Cao’s image which implies the legitimacy of his aggression; the second is the promotion of the “royal mission” that “the cultivated shall civilize the barbarous”, which serves as the legal basis for the justification of the aggression war. However, all the fantasies are destroyed by Japan’s losing and Eiji Yoshikawa also descends into a culture war criminal, tortured by conscience and censured by morality.