Akashi Rokurou

Sansui Shirokuro is a young guy with an old man's name, which ends up landing him in tragic circumstances when God snuffs out his life candle after mistaking him for a geezer whose time has passed. Now reincarnated into a fantasy world, Sansui is one of the Immortals, capable of immense power... as long as he's willing to put centuries of work into achieving it. One day, after five hundred years of swinging his sword, his monotonous existence is upended entirely by the appearance of a little baby. His master sends him out into the world to raise the child, and it's there that he meets a haughty young noblewoman and her tomboyish bodyguard. His fighting style may be bland and unpretentious, but the fast-paced mortal world is about to find out just how good even the most hopeless swordsman can get with half a millennium of practice behind him!

Master Suiboku's given Sansui his blessing, so in addition to guarding his mistress, Lady Douve, he's now offering instruction in swordsmanship. Not only is he teaching his fellow Japanese transferee Saiga and the foreign prince Tahlan, but he's somehow found himself teaching the city's ne'er-do-wells and the Royal Guard. Meanwhile, House Caputo, a Great House of the Arcana Kingdom, is fighting a war with the Kingdom's neighboring nation. Evidently, the army invading the Caputo lands is equipped with cheat items, but House Caputo's got a cheat of their own up their sleeve.

Just as Arcana and the new government of Domino are about to negotiate a peace, it’s revealed that Sansui’s adopted daughter Lain is the long-lost scion of the old Imperial House. Rival political forces move to use her as a figurehead—or destroy her.

With the peace treaty with the Domino Republic in place, Lain's safety is all but assured, but life in the mortal world is one new conflict after another.A new challenger seeking to be the world's strongest appears: the mystery girl, Ran. This talented wild child has a more complicated history than anyone would ever have expected.Does might truly make right? Conflicting values collide and fates intertwine in this new chapter of a tale that explores the meaning of strength.

The world's least interesting master swordsman has entered a new phase in his life: matrimony. A husband for the first time, Sansui must contend with his libido, his giddy wife, and an adopted daughter dead-set on writing down every tentative step in his new relationship.While his domestic situation progresses, Sansui must also continue to train his apprentices in the art of the sword. His proteges, Prince Tahlan and Saiga, having trained extensively under the unassuming Sword Apostle, are both preparing to take their own steps toward the future.For Sansui, spring has arrived in his life after five hundred years. After years of service to a spoiled princess, having endured all that hardship together, Sansui and Blois take hesitant steps toward trying to light a fire under their relationship.The next chapter in Sansui's grand immortal adventure begins!

"I've spent three thousand years preparing to kill you--" Fukei has plunged the Kingdom into darkness using storm clouds under his command. An Immortal who has spent millennia training to defeat Suiboku, Fukei commands the heavens and earth and is nigh unkillable due to his Immortal Arts. Even wielding the power of the Legendary Sword Eckesachs, Saiga can do little against this overwhelming force. As Fukei threatens to destroy the Arcana Kingdom, Suiboku returns to the mortal world after thousands of years to save his apprentice's students and to apologize to Fukei. Apprentices who trained as brothers now face off, marshaling centuries of skill and power in a tragic and bitter fight to the death.