Rinna is the owner of her own cake shop. In episode 2, the townspeople claim that she makes the most delicious cakes on the planet; however, they have no idea when her shop will open, as Rinna has a tendency to fall asleep without warning. In a later episode, it is revealed that Rinna can run at an impossible speed; she does not usually do it because she "doesn't like to run." Rinna ends her sentences with 'myu.'