Karila Hatsuse, a second-year Stella Women’s Academy student, thrives as the C³ Club’s core member, channeling her fiery energy into survival games. Three-quarters Japanese, she shares a twin bond with Aira Hatsuse, her polite Sendou Academy brother, whose airsoft pursuits in the Opera Club contrast sharply with her tomboyish vigor.

Sporting long blonde hair and light blue eyes, Karila’s 159 cm frame stands out in a modified uniform—a bold blue coat replacing Stella Academy’s standard pink. In combat, dark purple goggles and gloves shield her, while a white undershirt peeks through tactical gear, marking her distinct presence.

A close-quarters specialist, she wields a Tokyo Marui P90 and a Strike Warrior M1911 variant with aggressive precision, blending unorthodox tactics with razor-sharp reflexes. Her adaptability shone during a tournament duel against Aira: a torn shirt shifted audience favor her way mid-tie, underscoring her knack for turning chaos into advantage.

Karila’s hot-blooded honesty and trademark “slasher smile” fuel her upbeat persona. Loyal to C³ president Sonora Kashima, she spars frequently with Sonora’s rival, Meisei’s Rin Haruna. Though playful with teammates, her fierce loyalty and aggressive flair anchor team strategies, cementing her role as the club’s decisive "trump card," where combat skill and spirited cohesion collide.