Bertha quickly changed her serious attitude and said. "Today's story, thank you."

"There's no need to feel sorry, I already consider you my master."

As a child, Bertha was taken abroad to learn martial arts from a reclusive master, Salome, who was originally her older sister.

But because Bertha is smart, learns very quickly and well.

Salome once lost at her hands, then she asked Bertha to guide her. Bertha jokingly said to call her master, she would teach. From then ...