A Ghost Warrior's Swordsmanship Journey from Scratch

They say that passing through the windows connecting Hell and the mortal world carries a tiny chance of taking you to another time and place. Miyamoto Musashi, who had slain Minamoto no Yoshitsune and quelled the Phantom Oni uprising in Kyoto, thought he had reached the pinnacle of swordsmanship. But during an incident involving the sealing of the Gates of Hell, he unexpectedly found himself in another world. “Ashina Isshin, the legendary swordsman? The chance to cross blades with someone of your caliber is thrilling!” On the land of reeds, the blades of two practical-minded sword saints flashed. “An oni who’s lived for hundreds of years? Tch. You all use those damnable techniques. I hope all those centuries of swordsmanship weren’t wasted, Kokushibo.” In the Infinity Castle, a rain of blades couldn’t stop the technique known as One Mind. For others, transmigrating again and again through these worlds might be a painful ordeal. But for someone bent on claiming the title of the greatest swordsman under heaven... Miyamoto Musashi was having the time of his life. Strong warriors from other worlds? They’re all worth cutting down.