1boy, abs, alternate_body_hair, armpit_hair, armpits, bara, bare_pectorals, black_hair, bludwing, brown_eyes, haikyuu!!, large_pectorals, leg_hair, male_focus, muscular, muscular_male, navel, navel_hair, nipples, partially_undressed, pectorals, presenting_armpit, red_shorts, sawamura_daichi, short_hair, short_shorts, shorts, sitting, smile, solo, sweat, very_sweaty