This Love is Like a Song 2 (2021)

On the night Mu Yun Lan confessed his feelings to Ling Yun He, an arrow with a fire lotus pattern is shot into the Left Prime Minister’s manor to unveil a mysterious underground organization known as ghost soldiers.
Ling Yun Ge and Mu Yun Lan decide to investigate the matter, but on the night of their wedding, she is imprisoned for the crime of deceiving the king. She thought that her true love, Mu Yun Lan, would come to her rescue, but only betrayal awaited her. Just when she seemingly comes upon a cruel truth, she unknowingly falls into a bigger conspiracy.