Her master once told her that her Five Elemental Spirits appeared when she was born to protect her forever.
The Five Elemental Spirits were not at the late stage of Soul Formation when they were formed. They grew alongside Red Butterfly. Whenever she made a breakthrough, the Five Elemental Spirits did as well.
The stronger Red Butterfly was, the stronger the Five Elemental Spirits were.
As for where the Five Elemental Spirits came from, no one knew. In the end, Red Butterfly’s master sacrificed her cultivation to obtain a hint. Red Butterfly had the Five Elemental Spirit body. In her life, she will only have one trial. Once she passes that trial, she will gain the true Five Elemental Spirit body and will never have a bottleneck.
However, even though her master had used her cultivation as the price, she still wasn’t able to predict what the trial would be