Rune had a fairly normal life before she became a magical girl. Out of the group she has been a magical girl the longest and is fairly strong. Everyone view her as the leader due to her having the longest experience and overall she is fit for the role.

She became a magical girl when she was collecting rocks as a teenager during summer break. After picking up a mysterious rock she gained magical girl powers. She was quick to adapt and master her powers. She has the ability to heal others through crystals and rocks. Different kinds of rocks allow her to have different kinds of powers until the rock breaks or it becomes drained of thier magic. The thorns and flowers on her hair grew overtime after she gained magical girl abilities although no one is sure why, only those who are magical girls or are sensetive to magic can see them so she uses this as away to find and recruit other magical girls.