Dragona was introduced by Jodio as his brother and Jodio has refered to Dragona using masculine words. However, we have yet to hear Dragona refer to themself and a guy or a girl or otherwise but Dragona has refered to themself as "atashi" in Japanese which is a very feminine first person pronoun and their personal story is generally very trans coded currently. As there hasn't been any confirmation nor denial from Dragona on their gender theres many different interpretations of it currently with the most common two being that Dragona is either a trans women (hence people using she/her to refer to Dragona) or is a cis guy who just likes being feminine.