Chichi wa Eiyuu, Haha wa Seirei, Musume no Watashi wa Tenseisha.

Ellen may look like an ordinary girl, but she carries the might of both science and spirit within her. Born from both the human great hero and the Queen of Spirits. She was born with a special power of controlling elements in the periodic table. Ellen still has her past life memories of being a scientist, and her knowledge helps her to polish her powers. 

Her father, Rovel Vankreif, was a great fighter and died in a battle, but the Spirit Queen saved him and brought him with her. Later, they started to live together and created a peaceful family far from the world. 

The Vankreift family is continually facing threats, and for that, Ellen’s parents decided to protect her from the cruel world.