Devil Fruit Era: My Max-Level Armament Haki Flowing Sakura

Ye Chi transmigrated to a world strikingly similar to an urban version of One Piece! Here, there's Haki, the Six Powers, swordsmen, and Devil Fruits. The only difference is that everyone must enter the Devil Space at the age of eighteen to obtain their Devil Fruit abilities! Ye Chi possesses a 100x amplification system, starting with maxed-out Armament Haki! He casually buys a sword, and it instantly upgrades to Enma! He awakens Observation Haki, directly hearing the voices of all things! His Conqueror's Haki, after amplification, can even be wrapped around his attacks! And that's not all! When he obtains his Devil Fruit ability...