Bojji, firstborn son of King Bosse and Queen Sheena, entered the world under a curse stemming from his father's demonic pact. This curse transferred Bojji's inherent strength to Bosse, leaving the prince exceptionally small, physically weak, and profoundly deaf. His birth mother, Sheena, died protecting him from arrows during a coup, a loss that deeply affected him. Bosse's second wife, Queen Hiling, became Bojji's stepmother, initially loving him dearly though her overprotectiveness later created distance. He also has a younger half-brother, Prince Daida, who resented him due to perceived favoritism. Bojji resembles his mother, possessing fluffy black hair, black eyes, rosy cheeks, and an abnormally petite frame. His typical attire includes a plain blue doublet, white belt, white leggings, and black shoes. As a prince, he wears a small crown; after losing his original, he used a nearly identical fabric crown made by Kage. For travel, he dons a thick green cloak and carries a brown satchel. Despite his disabilities, Bojji exhibits exceptional emotional intelligence, empathy, and perceptiveness regarding others' feelings. He maintains a consistently kind and selfless nature, frequently giving away possessions or offering help even when mistreated. His resilience allows him to endure ridicule and physical challenges, often hiding distress behind a smile though privately expressing sorrow. He communicates through sign language, intuitively understood by Kage. Bojji is hardworking and earnest, traits that gradually draw loyal allies like Hokuro and Gigan. However, his immaturity sometimes leads to tantrums or difficulty processing complex emotions, and his trusting nature leaves him vulnerable to manipulation. The curse renders Bojji pathetically weak physically, unable to lift standard weapons or heavy objects. His primary combat asset is extreme agility, enabling effortless dodging and movement at subsonic to massively hypersonic speeds. Under Despa's tutelage, he mastered the "Despa Arts," focusing on precision strikes to pressure points, blood flow restriction, and momentum redirection. This technique allows him to incapacitate stronger foes, such as ogres or underworld prisoners, by exploiting weaknesses in their anatomy. He wields a specially designed short rapier for rapid, targeted strikes capable of shattering armor or splitting boulders despite his minimal strength. His durability varies, allowing him to withstand significant damage when healthy, and his stamina is peak human, enduring prolonged battles like the fight against Ouken. His techniques fail against liquid-based entities, armor-covered foes like Ouken, or opponents without discernible pressure points. As a giant, he retains immunity to most poisons and can digest almost anything. After Daida usurps the throne, Bojji trains to become stronger. His journey begins with betrayal by his sword instructor, Domas, who attempts to assassinate him. Saved by Kage, Bojji descends into the Underworld, where Despa trains him to harness his speed and develop his unique combat style. This transforms Bojji into one of the world's strongest fighters. He returns to save the Bosse Kingdom from Miranjo's coup, defeating her underworld allies and earning public adoration. Though he becomes king, he abdicates to Daida upon realizing his true purpose lies in adventuring with Kage. The two embark to explore the world, gain strength, and establish their own kingdom.