Phoenix Sky Five

The story follows Empress Wu Zhechen's reign as she changes the name of the Tang dynasty and establishes Luoyang as its capital. As threats emerge around the restoration of the 'Phoenix Heavenly Flower', an ancient Persian weapon, the Black Army is called to action to recover its blueprint.

Three years later, a catastrophic event involving lightning and fire devastates the Nanseong area. Mu Yeon-woo, the President of the Black Widow, is summoned to investigate the mysterious incident, which he discovers is not a natural disaster but rather a deliberate act. As he delves deeper into the case, he seeks out the largest merchant in Yeongju to uncover the true culprit behind the chaos.