is a third-year college student working as a mail carrier when she's not attending lectures. She has a bad sense of direction and frequently ends up getting lost. She's somewhat perverse and enjoys teasing Junpei. She seems to take a liking to Junpei after he helps her deliver letters in a district she got lost. Junpei eventually takes up a part-time job at the post office during the winter and they do mail deliveries together.