Blisstina Utonium

The birth of Bliss was years before the creation of Blossom, Bubbles, and Buttercup. She is about 8 years older than the girls, making her about 14. Bliss's creation happened when Professor Utonium got into a science-off with a rival scientist, Professor Newtronium, who had just created the Perfect Little Boy solely out of artificial ingredients and can fly so Utonium attempted to do the same thing, with the only difference being the gender and to fly further.

He added sugar, spice, and everything nice into his concoction, but accidentally added in Chemical W, giving his creation superpowers. Thus, "The Perfect Little Girl" was born, which he named "Blisstina Francesca Francia Mariam Alicia Utonium", or "Bliss" for short. Professor Utonium loved Bliss and raised her the same way he'd raised his three future girls, but it was only a matter of time before Bliss' powers started coming into play and proving their danger. Professor Utonium started to realize that whenever Bliss got excited, enraged, terrified, or upset, her feelings would mix with her powers, and would cause destruction. Bliss would blast holes in the walls of the house and endanger the well-being of the Professor and everyone else around her.