How to become a Demon Lord: The Former Hero's Journey as a Demon Lord!

The commander immediately clicked the fire button and the surplus amount of Mana in the ship overloaded the cannon and created a feedback explosion that blew up the entire ship!!!

Boooommmm!!!!!!!!

A great explosion echoed across the entire ocean as the ship blew up! The fire made the demon ships blast away to the side and their captains had to use a lot of effort to get the ships stable again! After a few moments, the dwarves piloting the ships finally managed to get the ship stable and they looked at their barrier and saw that it has reduced to about 5% capacity. The blast almost killed them! That fucking human wanted to commit a kamikaze!

But the human was dead now so it worked out in the end.

The dwarves gave each other a nod and they told the succubi mages on their ships to add more mana to the barrier and strengthen it again. The magic barrier that Floid and Rizi designed could be strengthened using magic. All they need to do is add more mana to the shield if it ever gets weak and the barrier will become strong again!

The succubi did as they were told and after some time, the barrier was back at a hundred percent capacity and the ships were good as new. The sacrifice from the humans meant nothing to any of the demons! They only saw it as a stupid last-ditch effort from a dying man. They just turned and went back to join the battle in the sky!

...

Inside the castle, the room where the king and Floid were sitting was very silent. Alucard stepped out of the room a while ago to prevent any of the guards from entering and disturbing his master. Floid was still sitting in his seat and drinking his tea. The king looked like he was about to shit his pants! The king could hear all the screams and shouting coming from outside! Alucard was killing all the guards that were coming to help him!

The king looked toward Floid and he became even more scared as he noticed that Fkoids appearance had changed! Floid no longer looked like the duke of Winchester! He now had his normal white hair and red eyes! The duke tried to stand up, but he was too fat to even push himself off the chair! Floid chuckled as he watched this.

"I think you should think before using all your energy to stand up. After standing up what exactly do you plan to do? Run? You won't even have any energy left for that. You're so fat that you'll probably not survive past three steps before your heart fails you. Just sit there and let me finish my tea. There's no rush,"

Floid's voice was playful at the beginning. But at the end of his sentence, his voice became cold and empty. It was a command and the king immediately sat back down! The king looked around and tried to see if there was anyone to help him! The head guard was lying in a pool of his blood at the side and the king had no idea what happened to Maryleen!

Maryleen jumped out of the room immediately after the head guard died and she left the king to his fate! That stupid headmistress! Does she not know that she is meant to protect her king!! How can she just leave me here alone with this monster!? At least she should have tried to sacrifice herself for me!

The king had no idea what Floid wanted, but he decided to try and see if he could talk to Floid and come to an agreement.

"I-If it's money you want then I can pay it. My kingdom might not have much food but we have a lot of money. We even have precious metal and we can also provide that for you, Duke Winchester. You don't have to go this far. We can come to an agreement,"

Floid rose a brow when the king called him Duke Winchester. The king still thought that Floid was the duke and he didn't even know that Floid was a demon. Well, Floid couldn't blame him. floid knew he didn't look like a demon. If not for his red eyes, then his appearance would have been that of a normal human being!

Floid finally finished his tea and he stood up. He started to talk while walking toward the king.

"There is no duke Winchester, you fat fool. My name is Floid Demonheart. I am the new demon lord."

Once Floid said this, the king's eyes widened and he leaned back till he almost fell off his chair. He leaned back as Floid came to stand right in front of him. The king felt sweat run down his forehead! This is a demon! And not just any demons, he is the demon lord!? I thought that the demon lord was on the other side of the world!? Why did he suddenly decide to come and attack my kingdom!? I only learned about the demons coming back and they are here already!? This isn't even fair!

"W-What do you want!? You might be a demon, but I-I'm sure there's something I can give you for you to spare my life. I can give you everything. The entire kingdom. Just please, don't kill me,'

Floid smiled at the king. It was a soft smile that made the king relax a little. Did I say the right thing!? He looks like he likes what I said! Maybe that is all he wants! If he wants the kingdom then I would gladly give it to him! There is no need for me to die just because of those useless people!

Slap!!

The king's head shot to the side as a heavy slap echoed across the room! The king's face throbbed in pain and he held it in shock as he looked up at Floid. Floid had a frown on his face as he stared down at the king. Floid was pissed. Does this idiot think he can buy me out? Does he think that I'm asking his permission to take his kingdom?

"Whether you live or die isn't up to you to decide. Your kingdom is mine regardless of what happens here. After all, you already gave my army free passage through your outpost, what other permission do I need? But I have to think you for that. It was very helpful,"

The king's eyes widened as he realized what Floid was talking about! The king allowed a hundred ships to pass through the outposts without even searching them! That means that an entire army was already at the coast of Aquinas! The kingdom wouldn't even have time to fight back at all!

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The king closed his eyes and Floid grimaced when he saw the king crying! What the fuck is this ugly shit!? Don't tell me that this is the limit of a king. Only this much and you're already crying? Well, you're a human so I shouldn't be surprised. You all are the same. You act weak towards the string and strong towards the weak.

"This isn't fair. What have I ever done to you demons? There is no justice in your mind!? Why would you come and attack me when I haven't even met you before?"

The king was still crying as he said this and it was disgusting to watch it. Floid couldn't even bear it anymore as he put his hand into his spatial space and pulled out a katana.

It was the same katana that Valkyrie used to attack Lilith and Floid. Alucard was able to purify the holy energy using demonic energy and now the sword would no longer be dangerous to Floid. Floid turned the sword around with a flick of his wrist and stabbed it into the King's chest till he was pinning him to the chair! The king gasped and Floid grinned as he spoke directly in the king's ear.

"Justice? What nonsense are you talking about? The only justice in this world is victory. Only the victors write history and they will be the ones seen as just. So don't worry, I'll write a brilliant tale for you. The tale of a foolish king that led his kingdom to ruin,"

Floid drew the sword out forcefully and the king immediately slumped in the chair. Floid grabbed one of the grapes on the table and ate it as he turned to walk out. The king might've been a fool but he had brilliant taste in food.