Two men are transported from another world to the world of 'Struggle F.O'. One is Sennosuke, a samurai aiming to become a warrior. The other is Yosuke, who chose to live as a ninja after a series of strange fates. The easygoing Sennosuke and the earnest Yosuke, though often clashing, come to know, recognize, and trust each other as fellow compatriots in this bizarre situation, striving together to return to their original world.

(This DLC introduces Sennosuke and Yosuke into the world of 'Struggle F.O'.)