0_0, 1boy, 1girl, :d, alternate_costume, blush, brown_hair, covered_navel, fang, hair_ornament, hairclip, headpat, innertube, machinery, open_mouth, school_swimsuit, school_uniform, serafuku, short_hair, smile, swimsuit, swimsuit_under_clothes, thighhighs, v-shaped_eyebrows