After her parents gave birth to Yuri her powers started to manifest at a young age, not knowing how to stop this Yuri's parents tried to seal away her power but.... their attempt to seal her powers turned against them. Without knowing or wanting it Yuri had murdered her parents, a day or 2 later she sat crying in the corner of the very room she had killed her parents when an old man found her.

This man became her master and taught her how to control her magical powers.

 

Having been taught how to control magic by her Master who had passed away due to an illness, Yuri set out on her own to discover the world. Even though it seemed like it Yuri never traveled alone, she was always accompanied by a spirit. This spirit had introduced himself as Saito and is not just Yuri's friend but also her guardian. People would often think of Yuri as a strange girl since she seems to be talking to herself, nobody is able to see her spirit friend.