Miren Hanafusa possesses striking blonde hair and purple eyes, coupled with a noticeable physical presence often noted as well-endowed. She shares a close friendship with Sana Koishikawa and sometimes helps at Sana's sanatorium, though her patient care tends to be rough. Naturally inquisitive, Miren has accumulated extensive knowledge about her friends' quirks and local town matters. She is well aware of her feminine attributes and confidently utilizes them, though whether this includes gathering information remains unconfirmed. Miren takes visible pride in her appearance and shows receptiveness to attention from Shinjuro Tateoka. A recurring theme involves frequent comparisons and implied rivalry with other female characters, particularly concerning physical attributes.

No information exists regarding Miren Hanafusa's background story, character development, or appearances beyond her established role in the original OVA series across any official media extensions such as additional seasons, movies, or spin-offs.