Ruijerd Superdia, a warrior of the feared Superd tribe from the Demon Continent, carries the weight of his race’s dark legacy tied to the Laplace War. Once leading Laplace’s royal guard, he and his warriors fell victim to cursed spears that triggered uncontrollable violence, forcing them to slaughter allies and foes alike. In this frenzy, Ruijerd killed his own son, who shattered the spear’s curse with his dying breath, freeing Ruijerd from its grip. Consumed by guilt, he abandoned suicide to pursue vengeance against Laplace, aiding the Three Heroes in defeating him. Though he vowed to restore the Superd’s honor, his actions only solidified their dread-filled reputation, branding him "Dead End." Emerald-green hair, a crimson gemstone embedded in his forehead, and a jagged facial scar mark Ruijerd’s imposing presence. His tribal garb later gives way to shaved or dyed hair and a patterned headband to hide his gemstone, evading recognition. His trident, forged from his own hardened tail—a Superd trait that strengthens with battle—serves as both weapon and reminder of his heritage. Bound by an unyielding code, Ruijerd prioritizes protecting children and honoring comrades, executing those who harm the innocent without mercy. This resolve wavers upon meeting Rudeus Greyrat and Eris Boreas Greyrat, youths stranded after a teleportation disaster. Despite ingrained distrust of humans, he forms an alliance with them, founding the adventurer party Dead End to redeem the Superd. Over three years, he mentors Eris in combat, favoring brutal practicality over theory, while guarding the pair across the Demon Continent. Centuries of combat hone Ruijerd into a warrior rivaling Imperial-ranked swordsmen, his third eye granting mana-sensing abilities to predict foes. Yet societal hatred for the Superd undermines his efforts, as the "Dead End" moniker sparks fear even among allies. When protecting Rudeus and Eris demands it, he publicly reveals his identity, shouldering blame to safeguard them. After securing their return home, he departs to seek surviving Superd, clinging to his redemption quest. Ruijerd’s journey shifts from vengeance to legacy. His bond with Rudeus and Eris challenges his rigid ethics, introducing non-lethal solutions to conflicts. Though his core code remains unbroken, these encounters temper his ruthlessness, merging steadfast ideals with pragmatic adaptability as he strives to rewrite the Superd’s cursed history.