hino kagutsuki, firefly (honkai: star rail), honkai: star rail, honkai (series), commentary request, highres, 1girl, aqua bikini, arm support, bikini, blue ribbon, blush, bracelet, breasts, collarbone, green nails, grey hair, hair between eyes, hair ribbon, hairband, hand up, jewelry, looking at viewer, nail polish, navel, partially submerged, purple eyes, ribbon, see-through clothes, see-through shirt, shirt, single-shoulder shirt, single sleeve, sitting, solo, stomach, strapless, strapless bikini, swimsuit, thighs, water, white shirt