Guernica is a member of the intelligence agency CP0. Like most of CP0's agents, Guernica is professional and prioritizes his missions above all else. However, he can be quick to anger as shown when he attacked Apoo at point blank range for calling him and Maha the World Nobles' dogs, and was even willing to eliminate Drake, an undercover agent of SWORD whom he considers to be an inconvenience. He also expressed envy towards Drake for his self-determination.