1girl, ai_ai_gasa, arm_rest, arm_support, artist_name, black_hair, black_serafuku, blue_eyes, chalkboard, collarbone, cupboard, desk, evening, floating_hair, hairband, head_tilt, heart, indoors, lamp, light_rays, orange_sky, red_ribbon, ribbon, sailor_collar, school, school_uniform, serafuku, sitting, sky, smile, solo, sunlight, sunset, upper_body, window