Larisa is a royal vampire possessing inherent supernatural abilities. She shares a deep connection with her twin sister Tamara, frequently appearing and acting alongside her. Visually similar to Tamara, Larisa distinguishes herself with loose hair except for a single braided section. Her attire incorporates red elements where Tamara's uses black, and she lacks Tamara's red ribbon, reflecting Lolita fashion influences.

Born into Yevgraf's vampire faction, Larisa actively participates in the pursuit of the Ark of Sirius artifact. She engages in combat alongside her sister, confronting the protagonist Yuliy in a forest encounter where Tamara narrowly avoids being stabbed, highlighting Larisa's involvement in dangerous conflicts.

Larisa possesses standard royal vampire physiology, granting superhuman strength and agility beyond human limits. She demonstrates flight capability during battles and can extend sharp claws from her fingernails, primarily wielding throwing blades.

A significant moment occurs during the escape with the Ark. Larisa remains behind with Mikhail, instructing him he can "stay" longer with Yuliy while Tamara transports the artifact to Yevgraf. This decision leads to her death, as Bishop intercepts her during her escape attempt, grabbing and shooting her.

Her relationship with Tamara defines her, as they operate as a unit under Yevgraf's command. They share personality traits, including a ruthless combat approach and a shared hope that obtaining the Ark might cure the degenerative disease afflicting vampires.

Larisa's character arc, from introduction to her definitive demise during the Ark retrieval events, concludes within the main series narrative.