Caden Yates descends for a marriage contract, ridiculed by Celestial Spirit Sect for 'useless spirit root.' His fiancée annuls the engagement, pushing terminally ill Lyra Linden onto him. Caden sees Lyra's poison, agrees to marry, revealing medical skills. On his wedding day, Zane Warrick seeks revenge; Caden seizes his Sword Soul. When Wei is invaded by Yu's army, Caden annihilates the army and wipes out Yu with sword strikes.