This article is from the Final-Fantasy and other Square Soft Games FAQ, by firstname.lastname@example.org (Nick Zitzmann) with numerous contributions by others.
In the Kingdom of Finney, an heir is born to the throne. The heir,
Gustave XIII, enjoys a nice life as being the future king of Finney -
until it is discovered that Gustave has no Anima, the element which
gives people magical powers, making Gustave by default unfit to rule. He
and his mother, Sophie, are exiled to a faraway kingdom where they
became treated like nobles. Gustave's story begins after he learns about
smithery from a master blacksmith...
SaGa Frontier II builds on the first game by reducing the amount of
quests in the game while adding to the plot/storyline of Gustave and one
other character, a digger named Wil Knights. The game brings back a
variation of SaGa Frontier's battle system, as well as an all-new "duel"
one-on-one battle system, and reintroduces the breakable weapons from
the first SaGa games.