!, 1boy, 1girl, arms_behind_back, bag, blush, breasts, closed_eyes, collared_shirt, comic, greyscale, large_breasts, medium_hair, monochrome, neck_ribbon, original, outdoors, ribbon, saliva, saliva_trail, shirt, short_hair, short_sleeves, shoulder_bag, sleeveless, sleeveless_shirt, sparkle, spoken_exclamation_mark, stairs, sweat, tachibana_yuu_(yakitomato), takahashi_keita_(yakitomato), yakitomato