Mistakenly Engaged to the Ghost King

Wynne, with a purifying bloodline, is tasked to find her master's fiancé Liam. She accidentally stumbles into a school filled with ghosts, and mistakes the Ghost King for Liam. The Ghost King grows fond of Wynne, and pretends to be her fiancé. Using her purifying bloodline, Wynne achieves success. The real Liam suddenly appears, and the lie is about to be exposed. What will Wynne do next?