1boy, black_hair, clothes_writing, cropped_torso, demon_slayer_uniform, facial_mark, from_behind, green_hair, hand_in_own_hair, hand_up, holding, holding_hair, kimetsu_no_yaiba, long_hair, long_sleeves, looking_away, male_focus, mint-tan, multicolored_hair, red_sun, signature, solo, streaked_hair, tokitou_muichirou, white_background