A long time ago there was a samurai of the Edo era feared for his skill with the sword. He was a true sword master and fairly popular among ladies. His name was Jubei, and many tales have been told about him. He left many descendants, but only one was frighteningly strong like him... During his training, he fell in love with a girl, and eventually they had a son, they decided to name him Shinjuro. Jubei continued his training Journey, but before he left, he told to the mother of his son that only if the boy became a strong man he will be worthy of wear his family name.