Paid to Be His Wife Again

My cold, billionaire ex-husband tore up our divorce agreement, begging for a 'renewal' with his fortune. I'll take the job! But the waters in this wealthy family are murkier than I imagined. With acupuncture needles and an abacus, I'll clear out all the demons and monsters in the Fuller family. But as I settle the final accounts, how did I end up getting myself entangled?