Misha Arsellec Lune

Misha is a β pure-blood Reyvateil, also known to the Teru Tribe as the Hoshiyomi or Star Singer. Since she has a pure bloodline, she is able to cast more powerful spells than regular Reyvateils. Her main purpose in life is to sing the song Chronicle Key to suppress Mir. She has been friends with Lyner since their childhood in Platina. He doesn't remember about her at first, though. She is also a good cook. She seems dispassionate, composed, but sometimes childish. Misha is quite bold and doesn't hesitate to make move on Lyner. She suffers from acrophobia, and is also quite a klutz.
In the game, Misha's specialties are thunder and ice magic.

From the 'List of characters in Ar tonelico' Wiki page