 He seeks to revive the Antoweif house, marry Sei-Ann, and claim the title of Crown Prince.He reveals that the treason plot of the Antoweif house had actually been a plot against the power and prestige of the Antoweif House, which rivaled that of the Royal House itself.Prince Joon wants to marry Sei-ann, and Sei-ann doesn't agree to marry Prince Joon.