Maria wanted to do more besides the dolls for her vessels, she wanted one that can function as the dolls but will help Xohar directly. She challenged Anideo to prove their worth, with he was focus on quality, Maria was focused on quantity which resulted in many failures, with a few stable vessels with this one being one of them.

While this vessel can stand and can operation as a servant, her voice box didn't work with it of the sound of screechy audio. Her lord disapproving of her rush job wanted her destruction by the hands on the winner. Yet instead, Koayah found comfort in this blunder even ripping about those who dare harm her. Due to the voice saying vaguely masculine, she was given the name Felix which by its meaning ironic in a sense.