1girl, bad_pixiv_id, bento, black_skirt, bra, bra_visible_through_clothes, breasts, buttons, chalkboard, classroom, desk, greyscale, indoors, kyoyakyo, large_breasts, monochrome, original, pov, school_uniform, see-through, see-through_shirt, skirt, smile, thighs, tomboy, underwear, wrapped_bento, yandere