Reina is a name used to refer to a gender mtf gender swap of a Einarr, another original character by personal ami.
https://www.furaffinity.net/view/47343287/

Due to this characters origin, the images are all tagged have mtf_crossgender without also tagging Einarr!

Seeing this confused me greatly and I have typed this out hoping that someone who knows how to properly make a character page will revise it.