An assistant to the 8th.

Spoiler

She eventually trusts Yuki when they agree to attack the 11th together and leads the attack with her "Orphanage Diary", but is killed by Yuno when Yuki and her suddenly turn on the 8th. Despite of her appearence, she is very intelligent, having an IQ of 200 as stated by Akise Aru in "Mirai Nikki Mosaic" chapter 5.