Brandon Stollen was born the illegitimate son of an aristocrat. Removed from his mother as a small child, he endured a harsh upbringing under his father, solely to serve the family's legitimate heir, his older brother. This oppression culminated in Brandon violently killing his father, brother, and stepmother one night. He burned the family mansion to ashes, discarded his father's name, and embraced his late mother's surname, Stollen, severing all ties.

Driven to attain immense power, Brandon pursued physical strength, rising rapidly through the warrior ranks. Starting as a C-Rank Warrior, he advanced to B-Rank Heavy Soldier, then A-Rank Berserker, finally reaching the pinnacle as an EX-Rank Destroyer while still young. His legendary combat prowess earned him titles like "God of Destruction" and "Overdeath." He wielded a massive battle-axe capable of turning mountains to dust and splitting oceans with a single blow. He fought with relentless ferocity and tactical cunning, employing ruthless measures to ensure victory against any foe. His undefeated record solidified his feared reputation.

Serving as the forward team leader for the top-ranked Bloodsword Federation, he led the clan to consistent victory regardless of the battle conditions. His path was marked by countless fallen beasts and rivers of blood, evoking a mixture of reverence and dread. Despite his successes, Brandon found no inner peace, engaging in excessive drinking, womanizing, and gambling during his downtime. Known for his vindictiveness, he ensured brutal retribution against anyone who crossed him, be they mobsters or royalty. His unpredictable and incomprehensible nature further cemented his fearsome persona.

Later in life, Brandon retired from active combat. He became the devoted guardian of his grandson, Noel Stollen, whom he deeply cherished. He imparted his values and combat wisdom to Noel, shaping the boy's ambitions. When a demonic incursion erupted through an Abyss portal in his hometown, Brandon confronted a powerful beast to protect Noel and the townspeople. In this final battle, he sacrificed his life, successfully defending them but perishing in the act. His death left a profound legacy, deeply influencing Noel's resolve to build the world's greatest clan.