1boy, 1girl, ^ ^, afterimage, akaza (kimetsu no yaiba), alternate universe, arrow (symbol), bed, book, child's drawing, closed eyes, comic, drawing, flower, flower-shaped pupils, flying sweatdrops, hakuji (kimetsu no yaiba), hands up, happy, holding, holding book, hood, hood down, hoodie, hospital bed, indoors, kimetsu no yaiba, koyuki (kimetsu no yaiba), laughing, long sleeves, looking at another, looking at viewer, monochrome, omame, on bed, open book, portrait (object), profile, reading, red flower, short hair, sideways glance, sitting, symbol-shaped pupils, tearing up