agahari, erica hartmann, sakamoto mio, strike witches, world witches series, uniform, 00s, 2girls, animal ears, black hair, drum magazine, eyepatch, gun, holding, holding behind back, holding sword, holding sword behind back, holding weapon, holding weapon behind back, long hair, machine gun, magazine (weapon), multicolored hair, multiple girls, no pants, one-piece swimsuit, ponytail, school swimsuit, short hair, striker unit, swimsuit, swimsuit under clothes, sword, tail, two-tone hair, weapon, weapon on back