Last Scenario is an RPG with turn based battles. The party for battles can contain up to four members. Other than physically attacking and using items in battles players can also use magic in the form of Spellcards.

There is also a mingame called Hex that can be played against certain people throughout the world. Hex is a card battle type game played on a hexagonal grid.

Hilbert, a boy who lives in a small town of Whitelake, considers himself the town's hero much to the disbelief of most of its residents. After doing some "heroic" tasks around town he meets a mysterious woman named Zawu. She informs him that he is in the lineage of the mighty demon slayer Alexander and that he is for sure to follow in his footsteps. This knowledge inspires Hilbert to go out into the world and fulfill his destined fate.