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Lingalind is enclosed by the Wall. The Wall covers, protects, cultivates, and nurtures the land. The Wall is God. One day in Edger, a village on the outskirts, a mysterious man named Back Arrow appears. Arrow has no memory, but he claims that all he knows is that “I came from outside the Wall.” Arrow tries to go beyond the Wall to regain his memories but is pulled into one conflict after another. (Source: Funimation)