2boys, 2girls, admiral_(kancolle)_(cosplay), back-to-back, bare_shoulders, binoculars, black_panties, blonde_hair, blue_eyes, blush, brothers, brown_hair, bush, cosplay, couple, crossover, elbow_gloves, facial_hair, gloves, hair_ornament, hair_ribbon, hairband, hat, heart, long_hair, midriff, multiple_boys, multiple_girls, mustache, navel, panties, ribbon, sailor_collar, shimakaze_(kancolle)_(cosplay), siblings, simple_background, skirt, smile, striped, striped_legwear, sweatdrop, thighhighs, underwear, white_gloves, zettai_ryouiki