Kurako

Background
She is a doll like Inochi and also physical strong and fast. She able to "heal" the Emperor by kissing Ogami, which embarasses Sakura a lot. She also has feels towards the Emperor.

The ironic thing is her name, Kurako, literally means gloomy girl. Unlike Inochi, Kurako seems more emotional, crying easily at trivial things.

Her only desire or purpose was to revive Code:Emperor. She helped to bring out the good side of Code:Emperor at first, but Oogami refused, saying that he is more comfortable with old emperor. Happy with Oogami's choice, she kissed him, shocking Sakura and Oogami. That kiss actually gave Oogami energy and brought Code:Emperor back. After she finished her purpose, Kurako, collasped and stopped functioning.

It was also revealed that is the puppteer of the dolls is actually Sakura's real mother. She was the one who created them.