Born in Asia, Ritsuka was involved in domestic warfare from an early age on. She has accumulated quite some war experiences and became a regular member of the ARA during her mercenary time. There she discovered a spy looking through the secret papers of the ARA, and now she tries everything to keep the secret information from getting out.
The selection icon shows Ritsuka in map Storm wielding unseen Desert Eagle pistol which can be discovered from several posters in Counter-Strike Online official websites.
Ritsuka is a parody of the Japanese Red Army leader's daughter, Mei Shigenobu, who was raised by the members of the communist group.