2girls, arm support, asymmetrical bangs, back-to-back, between breasts, black hair, blue skirt, blush, bonyari high school uniform, breasts, cardigan, hair ornament, hair scrunchie, hand on own chest, hand on own stomach, looking at viewer, medium breasts, multiple girls, necktie, necktie between breasts, pleated skirt, sail, school uniform, scrunchie, siblings, side ponytail, simple background, sisters, sitting, skirt, smile, white background, yellow cardigan