Mizuki Tsujimura

Mizuki Tsujimura (辻村 深月,) is a government agent and assistant to Ayatsuji Yukito. She is a main character in the spin-off novel.

Ability
The name of her ability is Shadow Step of Induction (きのうの影踏み,), or sometimes referred to as Yesterday's Shadow Tag Mizuki Tsujimura can create 'baby shadows' and control their strange/curious lives.