Shion Kaida, a 22-year-old inmate with alabaster skin and crimson eyes, bears long white hair and a scale-patterned birthmark across his left cheek—a congenital trait forcing nocturnal habits to avoid sunlight. His striking appearance fueled a youth marred by abandonment: left at an orphanage by five, trafficked to a freak show by seven, and fleeing to slums at ten. Surviving through underground gambling and hip-hop, he landed in prison at twenty after stabbing an obsessive admirer in a casino alley. A self-proclaimed hedonist, Shion cloaks his ache for connection behind languid indulgence in tobacco and moonlit escapades. Conversations drip with calculated flirtation and layered innuendo, yet trauma fractures his facade—nightmares resurrect childhood ostracization, exploitation as a spectacle, and flickering guilt over the stabbing he alternately justifies as self-defense or disowns during stress-induced delusions. Within prison rap collective GokuLuck, Shion channels turmoil through the Phantometal Lonesome Nail Ring, a clawed relic activated by a lick. Its power conjures visceral illusions during performances, though backlash floods him with visions of jeering crowds and self-hatred. Loyalty anchors him to teammates like sharp-tongued Ryoga Tosa and Kenta Mikoshiba, dubbed "Shibaken" in taunting camaraderie. Their bond teeters between solidarity and friction, united by resentment toward oppressive systems yet divided by clashing coping mechanisms. Group triumphs in competitions nurture fragile trust, yet Shion recoils when peers like Hokusai Masaki react impassively to his appearance—a neutrality unnerving after lifelong scrutiny. Lingering ambiguities haunt his incarceration: voice dramas replay the stabbing with warring narratives, hinting at potential framing or subconscious denial. His alliances remain tactical, including a transactional rapport with guard Yuto Inukai, who oversees GokuLuck’s performances. While Shion derides correctional authorities, his participation in the Prison Rap project—a controversial initiative trading artistic exploitation for reduced sentences—mirrors his broader entanglement with cycles of systemic neglect and survival.