Where Daemon's eldest daughter from his marriage with Laena all she adored was her cousin Aemond but he hates all but his crazy deranged family. Except that all changes when Laena's last wish not only to have her baby be born in her own home land her daughter Tessa to be married off to Aemond just before her last dragon riders death. Daemon isn't too pleased with the idea.
And the two cousin soon grow more closer than everything.