I predict that she would be the first to go.

We get a small insight that her talent alone triggers some memories of the others (due to her having the same talent as some strawberry blonde girl that I could mention)

Because of this, someone would want to get rid of her in order to free everyone else but she's not the mastermind.

Who kills her?

He would try to help as much as he can in order for them to escape but due to limited evidence, he ends up killing the wrong person

My prediction:

Victim: Kanna Mokoti - Ultimate Fashionista

Blacken: Sabito Yomiyu - Ultimate Go Player