Sela rules beside her husband Arthur as matriarch across the Nine-Sea territory, believing in their shared history. But ambition corrupts Arthur into an unfeeling despot who installs his haughty mistress inside the palace, casts Sela into iron chains, and desecrates the memory of their departed son.
Refusing to break under cruelty, Sela fakes reconciliation to secure proof of Arthur's deepest crimes, discovering he murdered their own heir to win supremacy. Backed by an enigmatic imperial exile named Kane, Sela marches onto the grand banquet floor. Stripping Arthur of his crown before all naval lords, she claims sovereign control to govern her ocean alone.
