1girl ahoge animal_ears bikini blue_sky breasts cat_ears cat_tail commentary_request day green_eyes hair_ornament heart heart_hair_ornament kohaku_q one_eye_closed open_mouth pink_bikini pink_hair rosia_(show_by_rock!!) show_by_rock!! side-tie_bikini_bottom sky small_breasts solo sunlight swimsuit tail teeth twintails upper_teeth_only wet