1girl, alternate_costume, arzareia, ass, bedroom, black_bra, black_panties, blue_sky, bra, breasts, bronya_zaychik, bronya_zaychik_(silverwing:_n-ex), cloud, cloudy_sky, curly_hair, curtains, day, drill_hair, grey_eyes, grey_hair, honkai_(series), honkai_impact_3rd, indoors, large_breasts, long_hair, looking_back, naughty_face, panties, sideboob, sky, solo, standing, twin_drills, underwear, window