Mira

Mira is a young woman studying Space-Time Manipulation in the Luxuria Belt Region. She and her twin brother, Nyx, do not share a birthday as they were born moments apart, right as the date changed. A woman of action, favoring the "let's just give it a try first" approach, she holds the belief that time is infinite. She appreciates her younger brother's talents, although the two are in many ways polar opposites.

(Source: The Alchemist Code Wiki)