In the distant past, the ancient heroes who saved humanity established a sanctuary in the form of a village called Kunlun. It was said that their descendants would aid humanity in dire times. Kunlun is situated beside the perilous "Last Dungeon," where formidable monsters dwell and the residents of Kunlun hunt them. Although Lloyd Belladonna grew up battling powerful foes, he considers himself weak in terms of magic, strength, and intellect compared to his fellow villagers. Nevertheless, his passion to become a soldier drives him to join the military academy in the Kingdom of Azami. Lloyd's exceptional abilities, despite his unconventional upbringing, may hold the key to ending the crises plaguing the kingdom.