Boko is a fictional mascot character from Girls und Panzer, known as a cute stuffed-bear-like figure that appears throughout the series as a favorite character and motif for several girls, especially Miho Nishizumi and her friends. Rather than being a combatant in sensha-dou, Boko functions as a symbolic comfort character and recurring pop-culture reference within the story. It represents innocence, friendship, and a playful contrast to the intense tank battles that define the series.