1girl, adapted costume, ahoge, animal ears, arms behind head, barefoot, bike shorts, black leotard, brown hair, dated, detached collar, flat chest, green ribbon, grey eyes, hair ribbon, kagerou (kancolle), kantai collection, leotard, maru (marg0613), neck ribbon, one-hour drawing challenge, playboy bunny, rabbit ears, ribbon, simple background, solo, squatting, strapless, strapless leotard, toes, trait connection, twintails, twitter username, white background