Having been raised and trained for the past seventeen years as a traditional samurai ‘bushi’, Yoichi was surprised when his father suddenly announces that there nothing more that he could teach his son, but he arranges for Yoichi to continue training at a dojo owned by one of his fathers friends. So now, Yoichi must leave the tranquility of his remote rural mountain life and move to city to live with his fathers friend’s family to continue his studies. And if learning how to cope with city life were not hard enough, he finds himself living with 4 beautiful sisters, and having to endure a ‘training’ regiment more severe than he could ever imagine…Yoichi Karasuma is a young samurai who spent all his life training martial arts on a mountain in Japan. His father finally sends him away to learn about the life in the city. There he starts to live with four girls and goes to a normal high school. But modern life is harder to grasp than expected.