Board Thread:Off-Topic Discussion/@comment-6433273-20150620015912/@comment-5051846-20150620110348

Regarding hormones, transgender people often undergo hormone treatments, which alter the levels of hormones in their bodies. This means it could be impossible to categorise Iroha based on whether Kyonosuke's vocal chords were most similar to those of your average female or those of your average male without access to poor Kyonosuke's medical records.

I think it's safe to say none of us are experts on gender issues, either philosophically or medically. This is as far as my knowledge on the subject goes. It may be simply impossible for us to categorise Iroha based on the phsycial structure of her voice provider's vocal organs.