I Fabricated the Techniques, but my disciple really mastered them? - Chapter 456 - 253: Gathering the Power of Heaven and Earth, Mountain and River Sword Array_2

There’s an ancient saying in Great Ruins, ‘Don’t go outside when it’s dark.’

She fought in the Battle of Changping and witnessed the killing of hundreds of thousands. She once led the Qin Iron Calvary and battled against the Six Kingdoms. She has seen a third of the land and witnessed the breaking of mountains and rivers. The sound of a grand zither and the light of a great female emperor. A prosperous world that was forged on the battlefield. Yet, these two thousand years are forgotten from history.

- Description from Novelupdates

Lin Tian, who had reincarnated into the world of One Piece ten years ago met Garp, who was on duty to eradicate pirates, and become his student.