The inverted soul of Aikawa Ace. Never ask that name to her though. She would not hesitate to kill someone. She might be all fierce and scary outside... But she's still Aikawa Ace in the inside... She does want to experience love like everyone else too... 

Itsuka Ace have extraordinary powers that let her control earth and minerals. Your job is to reunite them.

(Note: Aikawa Ace and Itsuka Ace are two completely different person, but originated from one complete soul, which is (--------) Ace) 