2girls, back-to-back, black_hair, blush, breasts, brown_eyes, brown_shirt, character_name, closed_mouth, copyright_name, dated, from_side, green_eyes, grey_background, hair_between_eyes, looking_at_viewer, looking_to_the_side, medium_hair, moe_(utakata)_(sugano_manami), multiple_girls, shirt, short_hair, short_sleeves, signature, simple_background, sketch, sleeveless, sleeveless_shirt, sugano_manami, upper_body, utakata_(sugano_manami), white_shirt, yuka_(utakata)_(sugano_manami)