The Hundred Years' War has ended. Technology has stagnated, while martial arts have flourished, and the strongest martial artists command the world's respect.
An unremarkable, frustrated boy accidentally enters a wondrous dream and gains countless sword techniques and combat skills he has never heard of before. From then on, he sets out to become a powerful martial artist.
Snake Bite, Sharp Claw, Eightfold Buzz... combo sword skills from Sword Art Online.
Gorilla, Lion's Song, Thirty-Six Prower... the domineering swordsmanship of the great swordsman Roronoa Zoro.
The Six Powers, Life Return, Haki... the limit-breaking martial arts of CP9's strongest member, Rob Lucci.
When these formidable martial arts, obtained in a dream, appear in another world where martial arts thrive, what kind of turmoil will they unleash?
This is the story of a boy who gains power from a nightmare and goes on to rule the world.