After receiving the life of 500 years of Kashima swordsmanship, a young boy sets out on a journey to Asura. The boy's name is Tsukahara Ginga. A true sword—that is literally a world of serious competition. If kendo, which uses a bamboo sword and protective gear, is the front sword method, then the true sword can be said to be the reverse sword method. Kashima truth style, Kashima Masayoshi style, and Kashima elegant style combine to form the three Kashima real swordsmen. When his father Tsukahara Ginemon Kagemoto, who is the head of the Kashima Shinken 3rd school, decides to retire, Ginga decides to inherit the position with his strength. A boy swordsman, a life-threatening story begins.