hashimoto (yanagi-momo), kamado tanjirou, rengoku kyoujurou, kimetsu no yaiba, commentary request, 2boys, belt, book, collared shirt, contemporary, covered face, covering face, cowboy shot, forked eyebrows, from side, grey background, greyscale, hand on another's back, holding, holding book, hug, implied kiss, long hair, male focus, medium hair, monochrome, multicolored hair, multiple boys, necktie, open mouth, pants, school uniform, shirt, short sleeves, simple background, sleeves rolled up, standing, streaked hair, teacher and student, watch, wristwatch, yaoi