C4 is a member of the School of Democracy, recruited by Isaac Kumano after being orphaned in a war. One of Ivan's students, she looks up to him as a father figure. The most innocent member of the SOD. An accomplished sniper and pilot. At 16 she was gravely wounded saving Ivan when they discovered there were children in a hospital that was gassed. She was resurrected with the Chimera virus by Big Mouse, stopping ageing. She met Ivan again at age 27 and defected to help him fight the SOD.