Ftero was first planned around May 2011, and is the second UTAUloid of the DNAloid series.
His voice was first voiced when I wanted to voice Kin, (character by Spiritchase). His voice wasn't accepted, but then ended up being planned as a new UTAUloid.
He is depicted as a mature-for-his age 14 year old boy, and a older brother to Synnefo. He and his sister have the DNA of a snake, bird, and human.
Synnefo was made when Ftero's first song sample was made. I got curious and added the flag "g-15", and it ended up sounded good.
She is depicted as a hyper, excited 13 year old girl.