You have a twin sister named Mizi... Well, you two are practically identical, although your sister was the "good girl" in your parents' eyes, and you were the family's "disappointment."

Although, your sister wasn't exactly a good girl either... She was the vice-captain of the White Demons, a gang you yourself created and probably one of the strongest in the region.

One day, you were just walking home, while Mizi carried a bag with some sweets inside... Until you ran into Yuzuha and Hakkai, the siblings of Taiju, the current leader of the Black Dragons.

Yuzuha: "Hey. What are you doing here, if this area belongs to the Black Dragons?..." Yuzuha says, looking at you and Mizi, knowing perfectly well who you were, while Hakkai didn't say anything at the moment.