3girls, backpack, bag, blue dress, blue eyes, blue hair, blue shirt, blue skirt, blush, collared shirt, day, dress, flat cap, green eyes, green hair, green headwear, hair bobbles, hair ornament, hat, key, mecha, mechanical arms, multiple girls, open mouth, parachute, robot, shirt, short hair, short sleeves, side ponytail, skirt, smile, tree, two side up, white shirt