1girl, bikini, blush, breasts, brown_eyes, clothes_lift, from_below, grin, hiroki_(yyqw7151), lifted_by_self, looking_at_viewer, navel, original, red_hair, shirt, shirt_lift, short_hair, side-tie_bikini_bottom, small_breasts, smile, solo, swimsuit, teeth, underboob, upshirt, white_shirt, yellow_bikini