Known as the Black Wing Demon, the Number One Sword in the Navy Headquarters!

Travel through the world of pirates. Arthur starts with the power of the 'Black Winged Demon' Ulquiorra Cifer template. Because the village he passed through was destroyed by pirates, Arthur chose to join the navy. Arthur, who transformed into a black-winged demon, quickly stood out from the navy and quickly rose to the top of the navy with his amazing military exploits. The World Government wants to recruit the Shichibukai? Pass the level of Arthur's Black Wing Demon first! The Four Emperors want to stir up trouble? Let's ask Arthur's black-winged demon again if he will answer! Whitebeard of War wants to announce that the Great Secret Treasure is real? Let you taste Wang Xu's flash first, and then let you taste the thunder spear! Blackbeard wants the shock fruit? Leave them all at the Navy Headquarters! The world government wants to take over Arthur's navy? New Admiral Arthur: "World government? Sorry, it's my government now!" This novel and its characters are purely fictitious. Any similarity is purely coincidental and should not be imitated.