2boys, 2girls, age difference, ahoge, albino, annoyed, black choker, black hair, blush, border, brown hair, child, choker, closed eyes, diagonal stripes, dress, female child, flat chest, gradient hair, grey shirt, half-closed eyes, hatching texture, hug, hug from behind, long hair, medium hair, multicolored hair, multiple boys, multiple girls, open mouth, orange shirt, pale skin, red eyes, shirt, short hair, short sleeves, sketch, smile, spiked hair, striped, striped shirt, upper body, wavy mouth, white background, white dress, white hair, yellow border