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

Floid watched the queen as she floated off the rock and slowly came towards Floid. She hovered in front of his face for some time and he stared her right in her eyes. Her hair and eyes were both blue and her body and skin looked way too perfect to be natural! But they were! Her breasts were not too small and not too big! The perfect size to fit into the hand and squeeze. She smirked when she immediately knew what Floid was here for.

"You're here for the demon sword aren't you? You're not the first to come here for it and you won't be the last. All of them were very delicious though. I wonder what you'll taste like,"

Floid found it a little irritating that she was talking about eating him. She really doesn't know he is the demon king? The mermaid queen looked like she already decided Floids fate, but he could see that there was some desperation in her eyes! She actually hoped that it was him! The mermaid queen has been waiting for a very long time while protecting this sword. Her mother was the one that received the sword and then the daughter took over when her mother died with the last demon king. That was almost four hundred years ago and the mermaid queen has been waiting for the demon king to come back all this time!

Floid put his hand up and touched her cheek. He couldn't help himself as he leaned up and kissed her. She was just too beautiful! He knew that he would get the sword, so there was no need to rush as he enjoyed the kiss. When he pulled back, he could see the queen smirking at him! She laughed with a mesmerizing voice before floating backward as she moved back to her rock.

"The demon sword is in the cave to the left. If you come out alive then I shall be yours to do with as you wish. I hope you succeed, you're not too bad to look at,"

The mermaid queen went back to lying down on the rock and all the mermaids there looked at her in shock! They have never seen the mermaid queen wish anyone well before! She would never allow any of the men that they captured to even have a calm mind when they are going into the cave because she would always threaten and scare them! How come she is wising this man well? Is he different from all the others?

The mermaid queen only had eyes for Floid as he walked into the cave on the left. She could feel that there was something special about Floid! It wasn't only because her mental attacks didn't work on him, but he was also exactly like her mother told her a demon lord was supposed to be! Nobody would ever dare to kiss her like that before! Her beauty is usually too intimidating to normal people and she could scare anyone that tried to touch her with just a glare, but this man just kissed her like it was something normal? She could feel that Floid was special, and that is why she didn't fight at all when he kissed her. She hoped he got the demon sword. He would make a brilliant demon lord!

Floid walked into the cave and he saw that there was no light inside here as well. He placed his hand on the wall beside him and started to move deeper inside. He could hear his feet hitting something wet on the floor with each step and he hoped that it was water instead of blood! He didn't like stepping in blood!

The first sign of light was a dim object in the distance that was releasing a low red hue. The demon sword was floating a few inches above the ground. It had a red hilt and it was a meter long with a bulky design that had only one sharp edge. The other edge was straight and covered with a red substance that almost gleamed red! Floid immediately knew that it was dragon scales gotten from the dragon of fire. The blade itself was as black as night and it looked like it absorbed all the light in the surrounding into itself! The hilt of the sword had a red chain with a sharp end extending out from it and as Floid got close to the sword and tried to touch it, the chain suddenly shot out and wrapped itself around his hand before stabbing him deep in the bicep!

Floid grimaced in pain! The sword completely broke through all of his defenses and just stabbed his skin! The power was amazing! He knows that his skin was very strong but the sword just made it look effortless to break his defense! There was a brighter flow from the sword and the sword started sucking out some of his blood! Is this normal!? Should he pull his hand back!? Floid thought all of these things, but he knew that even if he wanted to pull back, it was too late! The sword already had a tight grip on him and he wasn't going anywhere! So Floid just grit his teeth and grabbed the sword by its handle!

So what if it is sucking his blood! Take all the blood you want! But you're mine and you better listen to me! I'll be the master of this sword and not the other way around! The sword gained a small red glow once Floid thought this and it stopped sucking blood before it suddenly started to suck mana instead! Floid felt vertigo hit him as the sword drank half of his mana in no time at all!

[MP: 240,000]

His MP dropped a lot and he was shocked when the sword was still drinking! What a glutton! Floid felt the sword vibrate in his hand as it kept on drinking! Floid was shocked in the beginning because he didn't expect that the sword would start drinking his mana like that, but now that he was calm again, he grinned as he filled himself with mana from the surroundings!

The sword released another glow as it started to suck in mana again! Floid almost laughed at the sword! It was like a child pleading for more! Take as much as you want, then! I'll just keep on giving you more and more till you're satisfied!

The sword seemed to shiver in joy once Floid said this before it finally accepted his declaration! It pulled the rope out of Floid's bicep and a bright glow filled the entire cave!

Outside the cave, all the mermaids were murmuring amongst themselves while standing as they saw the cave glowing! They thought they would be hearings another man screaming in pain just like the others! Is this man actually the demon lord!?

The mermaid queen floated off the top of the rock with a wide smile on her face! She looked like she was receiving the greatest gift that she has ever gotten in her life! As the glow from inside the cave died down, the sound of footsteps started to echo and the mermaid queen landed on the floor for the first time and looked at the cave expectantly.

Floid walked out of the cave with the demon sword, Asmodeus, in his hand. The rope was still wrapped around his bicep but it was clear that he was the one in control of the sword! All the mermaids fell to their knees immediately as they saw Floid! They couldn't believe that it was the demon king! The mermaid that kissed floid and brought him here before felt joy fill her as she touched her lips! She kissed the demon lord!

The mermaid queen was one of the first to kneel down. She was right in front of Floid and she bowed her head to Floid respectfully as she felt tears coming to her eyes! She found him! She finally found the demon lord!!

...

Floid didn't leave the mermaid's cave immediately after taking the sword. He was offered a meal by the mermaid queen and Floid couldn't refuse because of how insistent she was. She looked like she would suffer and die if he didn't agree to eat with her! The other mermaids were running around and getting the table and food ready already and Floid just decided to honor their invitation.

The meal was mainly fish dishes and Floid was grateful for that! He didn't think he was ready to start eating humans yet!

The mermaid queen was naked throughout the meal and Floid had no idea how she was so calm. It must be because she was not used to any other way of living. It was just normal for her to be naked. There were no male mermaids and all the females were naked, so the mermaid queen never had a reason to wear clothes before, and from the way she kept on pushing out her chest to attract his attention, Floid knew that she was trying to seduce him!