The Rejected Sword Immortal

Ethan Shaw, a Swordflight Sect genius, is sent to fulfill a marriage contract. His intended, Claire Johnson, tries to pay him off. The marriage isn't canceled; he's forced to move in. He uncovers conspiracies: a killing formation, a soul-binding spell on Claire's family, and Demon Envoys. A dormant Demon Lord is waking. Ethan slays demons, breaks through to the Sword Immortal Realm. On his wedding day, Claire Johnson and Yvonne Sterling both appear. Which will he choose?