Densetsu no Yuusha no Densetsu

Ryner Lute is a student at the Roland Empire Royal Magician's Academy known for his lack of motivation. When war erupts between the Roland Empire and the neighboring country of Estabul, Ryner witnesses the loss of his classmates. Following the conflict, he embarks on a quest, ordered by King Sion Astal, to locate the relics of a "Legendary Hero." During his search, he discovers that a dangerous curse is spreading across the continent.