K2 is a T-Doll character from Girls' Frontline, based on the South Korean K2 assault rifle. She is portrayed as a lively, confident, and somewhat prideful combat unit with a strong sense of style and self-assurance. In the series, she appears as part of the wide cast of firearm-themed characters who assist the player’s forces in tactical battles. Her role is mainly as a playable unit and supporting character within the game’s narrative and events.