NA Localization:
There was once a man who made his way through Bakumatsu society with nothing more than his trusty katana and his friend's firearm, dreaming of a new age for his country of Japan.
He dreamed of a world in which everyone could smile, laugh, and live in peace, and kept running as hard as he could to try and make that dream a reality.
That modest wish, too big for any one person to realize, eventually swallowed the man whole as the times shifted beneath his feet.
His katana and sword were meant not for killing, but for protecting.
Fan Translation:
A lone man, dreaming of a new era, ran through the Bakumatsu age with his ancestral sword and his friend's gun in hand.
Simply for the sake of making a world where everyone can live while smiling, that man kept running.
Such a small, yet too big for a person, wish, eventually got the man swallowed up in the billow of something called "era".
―――His sword and gun is not for killing people, but for protecting them.