1girl, armpits, arona_(blue_archive), bare_legs, bikini, black_bikini, blue_archive, blue_eyes, blue_hair, blue_jacket, blush, closed_mouth, collarbone, feet_out_of_frame, frilled_bikini, frills, hair_over_one_eye, hairband, halo, jacket, light_smile, loli, looking_at_viewer, lying, multicolored_hair, navel, nomio, on_back, on_water, purple_hair, short_hair, solo, stomach, swimsuit, two-tone_hair, water