Shiina, a towering adventurer, crossed paths with King Bosse while journeying. Instead of clashing blades, Bosse proposed building a family, and she agreed, conceiving their son Bojji. Unknown to her, Bosse had bargained with a demon to siphon his firstborn’s power into himself, leaving Bojji small and frail at birth. Shiina cherished her son regardless, showering him with affection through his infancy. As the Bosse Kingdom’s queen, she donned royal garments but fought in her weathered adventurer’s ensemble: yellow leather armor, red shorts, and metal bracers. Her combat prowess relied on swift, precise strikes honed over years of wandering. When Miranjo’s forces attacked, Shiina shielded Bojji from a storm of arrows, trading her life for his. With her last breath, she implored Miranjo to spare the boy, securing his survival. Later spin-offs like *The Treasure Chest of Courage* portrayed her early travels with Bosse in vivid papercraft visuals, chronicling their romance and shared struggles to forge their realm. These tales cemented her as a pillar of the kingdom’s founding. Shiina’s legacy lingered in Bojji’s curly hair and round face, mirroring her own. As a giant, she bore natural poison resistance and formidable strength, though her single lifetime pregnancy exemplified her species’ dwindling numbers. Her death in the coup etched resilience and compassion into Bojji, traits that fueled his rise against hardship.