!? 2boys bishounen blue_hair brown_background brown_hair checkered_haori closed_eyes demon_slayer_uniform earrings green_eyes haori hashibira_inosuke highres hug hug_from_behind japanese_clothes jewelry kamado_tanjirou kimetsu_no_yaiba looking_at_another male_focus multiple_boys open_mouth scar scar_on_face scar_on_forehead smile sweatdrop tanuki_happa topless_male yaoi