hida tatsuo, akizuki ritsuko, idolmaster, idolmaster (classic), fur, 00s, 1girl, 2009, animal ears, animal print, antenna hair, bell, boots, bracelet, braid, breasts, brown eyes, brown hair, collar, cow ears, cow girl, cow print, cute & girly (idolmaster), dress, female focus, full body, glasses, happy, horns, jewelry, monochrome spot (idolmaster), neck bell, new year, ribbon, solo, thighhighs, twin braids, zettai ryouiki