shichimenchou, mikogami haruko, mikogami ranko, sky girls, pilot suit, 00s, 2girls, alternate costume, arm around waist, bare shoulders, blush, breasts, elbow gloves, gloves, greyscale, hair between eyes, hair ribbon, halterneck, hand on own hip, hip focus, hug, knees together feet apart, leotard, light smile, looking at viewer, mecha pilot suit, monochrome, motion slit, motionslit, multiple girls, parted bangs, ribbon, short hair, short twintails, siblings, side ponytail, simple background, sisters, sitting, small breasts, thighhighs, turtleneck, twins, twintails