Here's how you control Tokitowa's battles. Press circle for a standard attack. Triangle, square and X trigger a skill or magic that you've set in advance.

Shown below in these screens from Famitsu.com is Toki making use of "Heal of Gospel." The other screen shows Towa's equipment screen. She's equipped with the "Chaos" series -- Chaos Blade, Chaos Rifle, Chaos Tiara, Chaos Necklace, Chaos Ring and Chaos Belt.

On the story side, it looks like you will be making a choice between Toki and her alter ego Towa. It's a big choice, as at the end of the story one of Toki or Towa will disappear.