Chiharu's cousin. She, like Yuriko, does not possess the large breasts of her aunt or Chiharu, but is still larger than Yuriko.
She works many part time jobs to pay off her tuition fee and fund private detectives who search for her father who vanished a number of years ago.
She is a rival for Densuke's affections, but does not go to the extreme like Mikito or Yuriko, nor is she as shy as Chiharu. She once went on a date with Densuke.
Miharu only does not appear in the OAV but does in the Japanese radio drama. She is voiced by Jun Shikano.