“You are expelled from this party as of today!” These sudden words were directed at Rolo, a childhood friend and best friend. Faced with this unexpected tyranny and the unyielding stance of the leader, Albert, Jurg decides to leave the state-selected party “Silhasta” along with his expelled friend Rolo. Disgusted with a party that exiles a comrade without reason, even if it’s state-selected, Jurg announces his departure and returns to his hometown Marhas in the eastern frontier along with Rolo. A few days after the commotion, a girl sets out from the adventure city in pursuit of Jurg and his group. She is Fimia, the “Saintess,” one of the reasons why “Silhasta” was pushed to be a state-selected party. Naturally, “Silhasta,” and Albert, who harbors romantic feelings for her, are thrown into great confusion. With the dismissal of a ‘useless’ member, they had lost a key member and Albert’s love interest. Albert, frustrated that things aren’t going his way, begins to track down Fimia, believing that nothing can start without her. Meanwhile, Jurg and his companions start operating as adventurers, investigating the anomalies around Marhas. The party “Mercia,” formed by the renowned Jurg and Rolo, and later joined by Fimia, gradually becomes famous in the frontier. This is the story of Jurg, who will eventually be known as the “Hero of the Frontier.”