WMG / Asteroid in Love

Mira is Ao-sexual.

We know in Chapter 7/Episode 3 that back at the time Mira thought Ao was a boy, she kept drawing romance manga with the latter as the Love Interest. From here it's obvious she has a crush on boy!Ao, and one can conclude she is interested in guys. But right at the next chapter (or two segments later in the same episode), she's also the first person who declares that she and Ao's joint outings are dates, which means she's seeing their relationship as at least Pseudo-Romantic Friendship. This means she's going to romance with Ao regardless of the latter's gender, and given the premise, it's more likely for her to be Ao-sexual than bisexual (but I'm open to all possibilities).