1girl, arknights, beret, bird_girl, bird_tail, black_buruma, black_headwear, black_sports_bra, black_thighhighs, breasts, brown_eyes, brown_hair, buruma, hat, looking_at_viewer, lying, medium_breasts, multicolored_hair, navel, on_back, plume_(arknights), sasa_onigiri, short_hair, solo, sports_bra, stomach, tail, thighhighs, two-tone_hair