The system's task trigger prompt sounded from Bai Yu's mind.

【Ding! Trigger the main task of the system - guarding the Prison of Advance City]

  【Mission Tips: Guard the Prison of Advance City and repel the attacking pirates, you can get the corresponding mission rewards】

  【The richness of mission rewards will be determined by the battle situation between the two sides】

   "It seems that today's Push City must be preserved!"

  Hearing the notification tone, Bai Yu thought to himself.

   Then, he decisively took over the task.

   Immediately afterwards, Bai Yu and Hannibal also went to the entrance and exit on the first floor of the sea.

   Warden Magellan has arrived here.

   The hundred G5 elites brought by Bai Yu are getting off the warship one after another at this time.

   Carrying various ammunition supplies, as well as the three new forts.

   "You came just in time."

   Seeing Bai Yu coming, Magellan said to Bai Yu in a dissatisfied tone.

   "Your men told me to install three forts at the entrance and exit?"

  Hearing this, Bai Yu nodded.

"Any questions?"

   "I don't need that at all!"

   Magellan said.

   "The opponent is the pirate ship of the Four Emperors, and the Don Quixote family!"

   "Even if the Four Emperors hadn't come in person, ordinary bombardment would never have worked."

   "Let them come, I'll stop them here."

   After finishing speaking, Magellan gave Bai Yu a confident look.

   Magellan's ability to become the warden of the world's number one prison, Propel City, is largely related to his strength.

  Its superhuman devil fruit is poisonous fruit, which can block the invasion or the enemy trying to escape every time.

  The powerful point of the poisonous fruit is that it is somewhat similar to the natural system, but not exactly the same.

  Even if it has an armed domineering defense, once it is contaminated with Magellan's venom.

  The body will lose its combat power in an instant.

   Magellan has this confidence that he can wipe out all the enemies who will attack in the future.

  "If you can keep the enemy out, why do you take the initiative to let them in?"

   "You don't have to be afraid of death, but I must guarantee the lives of my men."

   "The fort will not be withdrawn."

   Bai Yu said with a firm attitude.

  Magellan's idea Bai Yu understands, but does not agree.

  One is because Magellan didn't know the power of the three forts brought by Bai Yu.

  The second is that Bai Yu must do everything in his power to ensure the safety of his subordinates.

  Let the pirates of the three parties approach, and Magellan may not be hurt for a while.

  But Bai Yu's men, and the rest of the people who advanced the city, may not be able to stop the pirates' siege.

"you"

   "Don't forget, this promotion city, now I have the final say!"

   Hearing Bai Yu's words, Magellan frowned and declared again.

  Hearing this, Bai Yu met Magellan's gaze without fear.

"Etc., etc"

   "Don't get excited, both of you, the enemy is now, but we must not start fighting among ourselves first."

  At this time, the smooth Hannibal stepped forward and smoothed things over.

   "Lieutenant General Bai Yu, don't mind, I said before that Magellan has something wrong with him."

   "Calm down, let me talk to him."

  Hannibal leaned close to Bai Yu's ear first, and apologized in a low voice.

   Immediately afterwards, he moved to Magellan's ear.

   "The warden, Bai Yu is a person assigned by the headquarters."

   "Recently, he has gained a lot of fame in the navy. If we can not offend him, let's not offend him."

   "Also, I went to LV6 with him yesterday."

   "But I saw it with my own eyes. With just one look, the extremely vicious prisoner of LV6 fainted directly."

   At the end, Hannibal recalled to Magellan what happened last night.

  After hearing Hannibal's words, Magellan relaxed his frown slightly.

   "The warden doesn't need to worry, since Bai Yu has confidence in his people, why don't we take a look."

   "Even if you can't stop the pirate in the end, the result is not the same as what you propose now!"

   "With the warden here, I'm sure I won't lose this city!"

  Hannibal is so smart, seeing Magellan's face softened a little.

   Expressed with flattery.

"Humph!"

   "Let me see how you can stop these pirates with only three forts!"

   Hearing this, Magellan seemed to agree with Hannibal.

   Snorted coldly, stepped aside and watched the show quietly.

   "Everyone is ready!"

   "Those who have not got a new musket, retreat to the rear."

   "The thirty people who got the new muskets will listen to my instructions for a while."

   "Maya, Kebi, Beru Mebo, the three of you each control a fort, follow my command to fire."

  Seeing Magellan retreating, Bai Yu ignored him.

   Immediately gave instructions to his subordinates.

"yes!"

   Under Bai Yu's order, everyone quickly dispersed into formation.

   At the entrance and exit.

  Led by Bai Yu, standing at the forefront.

   After that, three forts were erected in a triangle shape.

  Maia, Keby, and Bellumebo are respectively in charge, and two subordinates are around to assist in adjusting the direction.

  Further back, there are thirty people lined up in a queue, holding new-type muskets.

  In the end, the remaining nearly 70 people stood by.

everything's ready.

  Boom!

   At this moment, there was a sudden dull bombardment sound from the huge metal gate that pushed forward the wall in front of the city.

  The next moment, the metal gate was blasted open.

   One after another, the pirate ships passed through the cracks of the metal gates that were blasted open, and sailed towards the city of advancement with great momentum.

   "White Feather!"

   "Return my young master's life!"

   "White Feather, the Kidd Pirates are irreconcilable with you!"

   "White Feather."

  As the pirate ships approached, angry shouts continued to be heard from the pirate ships.

   All are directed at Bai Yu!

   "Lieutenant General Bai Yu, do you want to start shelling?"

   Seeing the leading pirate ship getting closer, Kebi asked Bai Yu nervously.

   "Don't worry, wait for them to get closer."

  Bai Yu raised her hand to signal Kebi not to worry.

   The air cannon of the new turret is not like the shells of the past.

   No need for post-launch thrust acceleration.

  The air cannon can be said to have an extreme rate of fire as soon as it exits the muzzle.

  So don't shoot at a specific distance.

   Bai Yu is waiting.

  Wait for the opponent's pirate ship to get closer.

   Make sure, it will be destroyed in one shot!

   After a while.

  Three pirate ships arrived first.

  Because the entrance and exit on the first floor of the sea surface of the city are only so big, it is barely enough to allow three pirate ships to pass and dock at the same time.

   "Aim!"

  Seeing three pirate ships approaching the entrance and exit for a certain distance, they are about to rush in and land on the shore.

  Bai Yu shouted immediately.

   Click, click, click.

  Under Bai Yu's order, the three of Maya, with the assistance of two naval soldiers each, adjusted the muzzle and aimed at the three pirate ships respectively.

   "Fire!"

  The next moment, Bai Yu gave another command.

boom!

  With the sound of Bai Yu falling, the three new forts fired almost at the same time!