With Three Hundred Swastikas at My Fingertips, I Became a Nightmare for the Celestial Dragons

This book is also called "Conquering the Grand Line" starts with the creation of three hundred Zanpakutō, the god-level props master of the Grand Line. Travel through the pirate world and become a disabled orphan in O'Hara! The worst thing is that the demon-slaying order is coming soon. Will the entire O'Hara be wiped out by then? Fortunately, I awakened the magical production master system, obtained the Zanpakutō template at the beginning, and made three hundred Zanpakutō, so... Akainu: "Oh my god, the magma that can burn me into flames actually got burned!" Qing Pheasant: "You may not believe it, but I was actually frozen!" Kizaru: "Who can be worse than me? I was kicked in the face by Hikari!" With the failure of the Demon-Slaying Order, the former archaeological holy land gradually became an invincible maritime empire. Some people call it the 'Black Technology Empire'! Some people call it a 'mecca of science and technology that transcends time for a thousand years'! Some people call it 'the grave of the strong, the cradle of the stronger'! Some people call it. Roger: "I prefer to call it, Super Dimension Resort!" . This novel and its characters are purely fictitious. Any similarity is purely coincidental and should not be imitated.