awayuki tobari, koumori usagi, original, bad id, bad pixiv id, highres, 2boys, 2girls, angry, black hair, blue eyes, book, chalkboard, classroom, desk, flower, gakuran, green hair, letterboxed, long hair, matching hair/eyes, multiple boys, multiple girls, necktie, open book, paper, pen, phone, pink eyes, pink hair, purple eyes, purple hair, reading, school, school uniform, short hair, sitting, smile, vase, window