2girls, ahoge, bangs, black choker, black footwear, black shirt, blonde hair, blue skirt, bocchi the rock!, bow, bowtie, chair, choker, embarrassed, full body, headpat, ijichi nijika, ijichi seika, knees together feet apart, long hair, long sleeves, looking down, looking to the side, multiple girls, ookiiayu, open mouth, pants, pleated skirt, red bow, red bowtie, red eyes, shirt, siblings, side ponytail, sidelocks, simple background, sisters, sitting between lap, skirt, smile, socks, striped, striped pants, sweat, sweatdrop, white background, white shirt, white socks