Tensei Kengou Zubabababaan!!

At the remarkable age of eighty-eight, an undefeated master swordsman draws his final breath. Throughout his long and storied life, he never once tasted defeat, yet a single obsession consumed him until the very end: uncovering the ultimate truth of the blade. As darkness claims him and his vision fades into the abyss, that elusive revelation slips through his fingers, leaving his lifelong quest seemingly unfinished. However, death is not the end for the world's greatest warrior. When he opens his eyes again, he is not met with the void, but rather greeted by blinding light and an unexpected sight—a pair of magnificent twin peaks. Reborn into a brand-new existence, the legendary elder finds himself granted an unprecedented second chance at life. Now armed with decades of peerless combat experience and an unyielding desire to finally grasp the true essence of swordsmanship, the curtain rises on the extraordinary next chapter of history's most formidable bladesmith.