1girl, animal ear fluff, animal ears, ass, calling card, cat ears, cat tail, colored eyelashes, derringer, finger to mouth, formal, gloves, grin, gun, halo, handgun, high-waist pants, holding, holding gun, holding weapon, pants, pink eyes, shirt, shirt tucked in, shushing, smile, solo, stairs, stairwell, suit, tail, weapon, weapon behind back, white gloves, white hair, white pants, white shirt, white suit