What if a child were born holding a sword? Literally, holding a sword.

The Farellas are born with weapons. These weapons are immediately confiscated and hidden on another world in a secret location, reserved until their rightful owners are old enough to master them. This has been the history for generations of Farella rule over Grendhill. Children born to the ruling Farella heir or heiress are born to protect the realm from invasion and war. They are born to train, to study, and to serve their people, marked by their royal arms which never rust or chip.

Until Aton is born without a weapon in his hands.

Aton and his siblings (quintuplets!) grow up as tradition demands, until their day of Departure, when Domire, Valkyr, Misolfa, and Tido travel to Harrval to retrieve their weapons and train in isolation. Aton stays behind and narrowly misses witnessing his parents being abducted.

Now the five siblings need to steer Grendhill through this national crisis while trying to rescue (or ransom?) their parents in the middle of a period that is supposed to be a time of isolation and concentration for them.