George Plantagenet, second son of Richard, Duke of York, and Cecily Neville, occupies the middle position between his brothers Edward IV and Richard III. His youth is scarred by the Wars of the Roses, witnessing the traumatic deaths of his father and brother Edmund at Wakefield, forcing him into exile and forging lifelong insecurities and fear of lost status.

Upon Edward IV's ascension, George receives the title Duke of Clarence and the position of Lord Lieutenant of Ireland, appointments rooted in nepotism. Resentment festers over Edward's power and perceived favoritism, deepening when Edward's marriage to Elizabeth Woodville elevates her family, threatening George's position as heir presumptive and fueling his hostility towards these social climbers.

Ambition drives George to defy Edward's explicit orders and ally with Richard Neville, Earl of Warwick. He secretly marries Warwick's daughter Isabel Neville, seeking her wealth and influence, solidifying his betrayal as he joins Warwick's rebellion against the Yorkist crown. George briefly aids in restoring the Lancastrian Henry VI, only to abandon Warwick when the Earl prioritizes Lancaster over his claim. He reconciles with Edward and fights in the battles leading to Warwick's death and York's restoration.

Following Isabel's death, George's mental state deteriorates sharply. He turns to alcohol, exacerbating instability. He illegally accuses and executes Isabel's lady-in-waiting, Ankarette Twynyho, for murder without evidence. His erratic behavior escalates with the public defense of associates convicted of predicting Edward's death, raising treason suspicions. This conduct, coupled with his history of betrayal, leads Edward to imprison him.

Richard III initially seeks to protect the York legacy and family unity, but George's repeated treachery—including attempts to seize the throne and undermine Edward—strains their bond. Richard eventually deems George unfit for power and supports his prosecution. George is tried and attainted for treason by Parliament, with Edward authorizing his execution. The manga depicts Richard ordering the death, aligning with historical accounts of drowning in wine.

Throughout, George is characterized by envy, impulsiveness, and a lack of political acumen. His power fixation contrasts with Richard III's conflicted duty, positioning him as a cautionary figure whose actions hasten his own downfall.