Tessa is a friend of Asuna however she couldn't afford a NerveGear therefore she wasn't trapped with her in Sword Art Online. After that complete event and the aftermath of ALfheim Online Tessa decided to try VRMMO's herself however as she wasn't as much into fantasy as the now fulltimegamer Asuna, Tessa bought Gun Gale Online a futuristic game with modern firearms. There she soon build herself a name as Little Demoness.