Romance of the Warring States Era

Originally a small clerk, I stumbled upon an immortal transcending a tribulation, and was dragged back to the Warring States Period. To survive, I resorted to modern technology, experiencing major historical events. It's impossible to revisit the original history, but to adhere to the records in the history books, I deliberately concealed many things. A chance encounter with a secret manual gradually transformed me into a cultivator. Over the course of millennia, I encountered beauties of all kinds, but without a breakthrough in my cultivation, I vanished into the dust of history...