1girl, anniversary, artist_name, black_hair, black_skirt, black_thighhighs, character_name, chobipero, convenient_leg, daihannya_nagamitsu_(tenka_hyakken), dated, grey_sweater, hair_ornament, happy_anniversary, heart, horns, legs, nail_polish, no_shoes, pleated_skirt, school_uniform, signature, skirt, solo, spoken_heart, sweater, tenka_hyakken, thighhighs, twintails, yellow_eyes