1girl, |, alternate_costume, arms_at_sides, bad_pixiv_id, black_eyes, blood, brown_footwear, ceiling_light, chair, chalkboard, classroom, closed_mouth, contemporary, desk, expressionless, fisheye, fluorescent_lamp, frog_hair_ornament, green_hair, hair_ornament, heart_(organ), indoors, kneehighs, kochiya_sanae, long_hair, looking_at_viewer, neckerchief, neruzou, on_chair, plant, potted_plant, red_neckerchief, sailor_collar, school_chair, school_desk, school_uniform, serafuku, shirt, shoes, sitting, skirt, snake_hair_ornament, socks, solo, touhou, white_shirt, wide_shot, window