Vida is a 9 y/o girl who has memory lost because of the pills she takes, she has foster parents and A foster sister. She loves games and such but sometimes she has nightmares about her playing a horrific game that can get herself killed. When she is in the borderlands it's opposite, she passes out every time they cleared the game, But only she is with Arisu. She is scared of killing people unless she is on her bloodlust zone. She is very smart when it comes to death and life, she's very creative and very gentle when it comes to her hobbies. She can act like a adult.

Hints is in book 1 and 2