WARNING: This article contains spoilers. Please read at your own risk!
A clone produced in Mori Koran's lab using Kurei and Kurenai's genes, Renge is a naive little girl who follows all of her "papa's" order without question. She is the “successful” clone because she is the only one who developed flame controlling abilities. She is eventually defeated by Kurei, only to be killed by Mori himself.
Cute cosplay by 卯月りと (うづきりと) Uduki Rito! I wish the anime stuck to the manga ending instead of rushing to wrap everything up! Thanks to Rei for sending this in!