The imperial guard and his three traitorous childhood friends ordered to hunt him down get accidentally buried and kept frozen in time. 400 years later pass and they are defrosted continuing the battle they left behind.

An imperial guard searches for the truth behind a conspiracy that framed him and his partners. The proof of his innocence lies with a wanted woman named Bei Zhai… but will she reveal what she knows? In this intense prequel to BROTHERHOOD OF BLADES, the only thing he can truly trust is his sword.