VENGEANCE BOOK ONE BIRTH OF LAST NINJA ASSASSIN

When he was six, his parents were massacred by Yakuza and left in the middle the Virgin Forest of Mt. Fuji to die, but saved by a professional Ninja Assassin. After years of hard training, the boy gained Spirit of the Forest and attained the final knowledge of the martial arts. He became a true man through his guardian lady. She also taught him the arts of conquering women. Thus he became not only a perfect killing machine, but also a formidable seducer. He could.extract any information from any woman during sex.
He avenged the deaths of his parents alone and this is the story of his growing pain.