In the mighty continent of Erisen, there lies 4 great kingdoms: Albeguard, Emparal, Ravaryn, and Navigare. Each year, in each kingdom, a few young children show signs of having Artis magic, a highly revered ability across Erisen. Once Artis magic is threatened, two twins from Albeguard can’t help but use their own Artis ability to protect what Erisen relies on for survival.