The Time Cocoon

An extra actor from an obscure troupe is recruited by a technology company and sets off on a journey through time, arriving in the final years of the Sui dynasty, an era when rival heroes rise across the land. Though he meets Yuchi Jingde and enters Li Shimin's service, his life changes as a result. He tries to unravel the mystery, unaware that a massive conspiracy has already closed in around him.