Miku Hatsune: age 10

Miku is Teto's young step sister. The two of them have been together since they were young. Miku has a darker personal story going on during Firsts that explores her current situation in life. Miku is shy, soft spoken and quiet. She's a troubled young girl, depressed and mentally traumatized.  (She should sound more like a child) (There are further details about her character but those will be revealed with the person cast)