Natsuki Shirafuji (白藤 菜月 Shirafuji Natsuki) is a middle school girl, and the deuteragonist of the series. She belongs to a rich family, and is best friends with Kotono Hayama. Along with Kotono and Misaki Hijiri, she works as a detective at the Kuroki Detective Agency. She uses the card Moon, and transform into Loli White. She uses a pair of nun chucks while in battle. She is voiced by Yukari Fukui.
Natsuki has blonde hair with pigtails, and a blue bow on each side. Unlike Kotono, her outfit is fully white, aside from the blue corset like section around her waist. She has white leggings/socks and blue shoes that resemble a ballerina's shoe.
Natsuki comes from a rich family, but despite this, she is very well matured and not snobbish like many stereotypes of rich people insist. She has an adventurous and bubbly nature, and enjoys teasing Kotono at times.
Natsuki's transformation involves her in space, standing on a flesh like orb. She squeezes another flesh like orb, which white ooze pours out of it from different holes. It turns her outfit white, and a white foam covers her entire body as she turns into Loli White.
Natsuki: Light of pure white eternity. Power of love that sleeps within the halo, Follow the path of the silver chains. Grant me now, thy guidance! Sacred! Loli white is here!