Katyusha commands Pravda Girls High School's Sensha-dō team, piloting a Soviet T-34/85 tank before transitioning to a T-44 and later the Object 140 "TERROR". She possesses short blonde hair, light blue eyes, and a notably diminutive stature, frequently accentuated by her oversized Russian tanker's padded cap. Her standard attire is a green-brown uniform tunic bearing a red four-pointed star paired with a black skirt, switching to a WW2-style tanker jumpsuit during combat. Her personality blends arrogance, tactical skill, and childlike emotional volatility. Resentful of her height, she often perches on Nonna's shoulders to assert dominance and demands acknowledgment of her superiority, manifesting in harsh surrender terms like forcing defeated opponents to bow. Despite this arrogance, she displays vulnerability, openly crying after losses while denying her tears, and exhibits fierce physical combat prowess capable of overpowering larger adversaries. Her leadership involves manipulation, such as deliberately fostering divisions between Pravda's first-year and senior students to consolidate control. Katyusha shares a complex bond with her second-in-command, Nonna, who provides physical support and emotional caretaking, including managing her sleep schedule to improve stamina. She struggles with Russian language comprehension, frequently becoming irritated when Nonna and Klara converse in Russian, and shows reluctance to learn despite plans to attend a Moscow university, instead expressing interest in sign language. Her dynamic with Miho Nishizumi features rivalry tinged with respect; she nicknames Miho "Pirozhki", acknowledges her tactical skill after defeats, and competitively declares, "Anything Miho can do, Katyusha can do!" during engagements. As Pravda's commander in the anime series, she faces Ooarai in the national tournament semi-finals, luring them into an ambush and demanding surrender. Following Ooarai's refusal and counterattack leading to Pravda's defeat, Katyusha displays grace by congratulating Miho and later cheers for Ooarai in the finals. During *Der Film*, she co-leads Pravda-St. Gloriana forces against Ooarai-Chi-Ha Tan, opting for aggressive head-on assaults over flanking maneuvers. She sacrifices her tank to secure St. Gloriana's victory and later aids Ooarai against the university team as vice-commander of the "Sunflowers" unit. Witnessing Nonna, Klara, and KV-2 crews sacrifice themselves for her escape causes profound shock, yet she perseveres, participating in the amusement park defense and joint operations with Kuromorimine tanks. After *Der Film*, she graduates from Pravda, enrolls in a Russian university, and retains her Sensha-dō command role. In *Das Finale*, she appears observing matches from Klara's shoulders and leads Pravda through rapid, radio-silent attacks in snowy terrain. Her development shows increased cooperation with former rivals while retaining her characteristically assertive demeanor during joint operations.