Light vs Shade

A badly injured boy was luckily saved by fencer Isabella and Ana, but unfortunately lost all his memory.
Ten years later, the teenage fencer Ryun got a magic sword by accident and all have changed since then.
He's eager to explore the mystery of his own life and to solve it.
The quiet life was over, the teenage boy, Ryun, started the adventure on his own.
Meanwhile, in the North Pole - Savage Land, a grand plot was being hatched.