Mahiru Koizumi, the Ultimate Photographer, is a young woman eager to hold men to a high standard. Her neglectful upbringing instilled in her the discipline she needed to take care of herself, and broke off any willingness she may have had to let sloppiness slide from boys. Preferring to take pictures of people smiling rather than more elaborate forms of photography, Mahiru is often left feeling that her talent is somewhat boring relative to her peers.