Shiki is a curious 18 y.o. girl who can be described only as "a mad scientist". She loves experiments, and is motivated by finding new things to hold her attention; if it's not interesting, she's not interested. Rather than being scouted by Producer, she chose him as part of one of her experiments. She sniffed the Producer and his smell convinced her that he was the right one for the experiment. She became an idol for this reason.
It's implied she uses pheromones to attract fans, and even in idol form, her hair looks messy and uncombed.
In the 11th Magic Hour SP, she revealed that she went to an American university before being an idol, but she got bored of it and returned to Japan. She attends a Japanese high school and lives on her own. She likes tabasco sauce and her forte is chemistry, but she dislikes wasabi and waking up early.
In the tie in Cinderella Girls Theater skits, Shiki is introduced by Yanagi Kiyora. Her sniffing habits show up as early as her first line and her “Nyahaha” laugh appeared soon after. She seems to be friends with Sagisawa Fumika and Jougasaki Mika, who both also know of her nose. Her smelling often causes her to fall asleep and she highly regards the Producer’s jacket as a source of soothing smells. Shiki got a job as a background character in a Wild West film.
