By keeping a dominance over the land during wartime, the Capital Kingdom of Regunum has kept the world in a state of peace. However, the recent appearance of humans with a "mystical" power have started to appear, and naturally the citizens begin to fear and even despise them. Thus, the Kingdom has sent out their soldiers on a mission to gather and capture them.

Meanwhile --- Ruca, the son of a merchant living in Regunum, discovers he also wields this "power"...