Name does not fit capitalization rules but is the accurate name of the person - AZKi (Holo no Graffiti)

Hi there team, there's an issue that I would like some advice on. As per the Twitter announcement of the next episode of Holo no Graffiti (an anime which is currently on this site), AZKi will be making her debut. However, when I try to add her to the cast list, I, obviously get an error due to the capitalization rules.

I have three choices in this situation. Either somehow get it to work with the capitalization, make the name in sentence case, or not add it in altogether. I'd like some help on the matter.