Robell, the Prince of the Kingdom of Korintos, and Arieno, the only daughter of a farmer within the territory, once made a promise: they would both attend the Military Academy two years later.
However, shortly after making this promise, Arieno suddenly disappeared.
Two years pass. When Robell arrives at the Military Academy, the person waiting for him there is none other than Arieno, who has now become his personal attendant.
Why did Arieno suddenly go missing? What happened during those two years?
Overwhelmed by emotions, Robell must nonetheless steel his resolve and fulfill the duties mandated by the Military Academy.