1boy, 1girl, age_progression, akaza_(kimetsu_no_yaiba), artist_name, back-to-back, blood, blood_from_mouth, blood_on_clothes, blood_on_hands, blood_splatter, comic, constellation, crying, crying_with_eyes_open, death, dougi, flower, greyscale, hair_bun, hair_pulled_back, hakuji_(kimetsu_no_yaiba), haori, hug, iris_(flower), japanese_clothes, jiuyu0, kimetsu_no_yaiba, kimono, koyuki_(kimetsu_no_yaiba), long_sleeves, monochrome, mourning, nihongami, obi, origami, outstretched_arm, paper_crane, polka_dot, polka_dot_kimono, reaching, reaching_towards_viewer, sash, short_hair, silent_comic, single_hair_bun, sleeveless, sobbing, spider_lily, tattoo, tears, updo