1boy, abs, blonde_hair, forked_eyebrows, kimetsu_gakuen, kimetsu_no_yaiba, long_sleeves, male_focus, male_underwear, marotoskin, multicolored_hair, muscular, muscular_male, navel, open_clothes, open_shirt, pillow, red_hair, red_male_underwear, rengoku_kyoujurou, sleeping, solo, tank_top, underwear, white_tank_top