Sena Kuroi (黒井 せな)

Birthday: December 10

A "super assistant" who appears in chapter 18. She was introduced to Aito when his assistants couldn't help him out, the deadline was very close.

Has a physically weak body and likes cute things, although she's trying to hide both of those facts. She hides these facts because she doesn't want people to look down on her at work. Despite her looks, she's supposedly 19 years old.