urabe katsuto, himekawa kotone, hinayama rio, hoshina tomoko, kamigishi akari, kurusugawa ayaka, kurusugawa serika, matsubara aoi, miyauchi lemmy, multi (to heart), nagaoka shiho, serio (to heart), to heart, to heart (series), 6+girls, blonde hair, blue eyes, blue hair, boxing gloves, brown eyes, brown hair, everyone, fang, glasses, green eyes, green hair, gym uniform, hairband, happy, long hair, multiple girls, pink hair, purple hair, retro artstyle, robot ears, school uniform, short hair, smile