When a Friendly Old Swordsman named Montana Sunset encounters an odd couple of Ladies in the midst of a cross-country race, He and his Dog are compelled to tag along and help protect them from the fierce competition and unpredictable environments.

'One. Shot' is (fittingly) a One Shot manga that was done for the Shonen Jump one shot contest. When a Drunk Man tells a mysterious Stranger about the night  he encountered the legendary "Ace Rider", he's shocked to learn just how much of the story the stranger already knew...