Magic System in a Parallel World

"In case you don't know me, allow me to give you a brief explanation about my background." Edgar said.

"I was born in a world ravaged by monsters, one that's similar to this one, and I thought that I had met my end after being killed by a powerful monster, but when I opened my eyes, I found myself in this unknown world."

"I was weak and pathetic in my old world, but in this world, I had the power and the opportunity to do whatever I wanted. I studied magic extensively, learned how to craft artifacts, and even created my own unique magic spells. However, I was not content with just having power. I wanted to use my power for something— I wanted everything, so I decided to try and rule the world."

"My conquest went smoothly at first as I conquered large countries and powerful families. I had all the wealth and women in the world. Unfortunately, I made a mistake, which ended my conquest, and now I am dead."

"You must be wondering why I am telling you this. It's simple. I want you to know about me before you accept my legacy."

"Legacy…?" Leo mumbled.

"You are probably wondering about my legacy, so I will give you a quick rundown. My legacy is basically everything I once owned. My artifacts, my wealth, my magic spells— everything that I have acquired during my conquest is my legacy, and I am looking to pass it down to someone worthy."

"Of course, I am not telling you to continue my conquest. What you do with my legacy is up to you. I simply don't want it to collect dust and rot away."

"You're probably thinking that this sounds too good to be true— that there might be some ulterior motives behind all of this. I don't blame you for having doubts since Otherworlders are generally hated and not trusted by the people of this world. If you don't want to trust me, there's nothing I can do, as a dead man cannot force the living to do something they don't want to."

"With that being said, my legacy isn't free for taking either. If you want my legacy, you will have to chase after it, fight for it, bleed for it, and risk your life for it. In 5 minutes, the teleport magic in this room will activate. If you wish to acquire my magic, stay in this room. Otherwise, leave this room. I wish you the best of luck, Worthy One."

The hologram of Edgar Darkmore disappeared from the room the next second, leaving Leo and Nina utterly speechless.

A few moments later, Nina turned to look at Leo and said, "You're not going to accept his legacy, are you?"

"I'd be lying if I said that I am not interested in it…"

"Don't do it, Leo! These Otherworlders cannot be trusted! Every time they appear in this world, the world is thrown into disorder! He's definitely trying to trick you into some kind of malicious scheme using his legacy as bait!"

"I understand your skepticism, but what if he's telling the truth? If we acquire his legacy… I cannot even begin to imagine the power we can acquire. After all, he was strong enough to almost conquer the world if not for some mistake, right?"

"Leo…" Nina stared at him with a worried look on her face.

"If you don't want to do this, you can wait for me outside. I want to see for myself if this legacy is worth it." Leo said after a moment of silence.

Nina gritted her teeth before shaking her head, "No! I am coming with you!"

"Are you sure? You don't have to force yourself."

"I am not forcing myself. I have already decided to follow you no matter where you go. Also, I want to be there to stop you if you decide to do anything stupid."

Leo smiled and nodded, "Alright."

Five minutes later, the floor to the room suddenly began glowing with a bright light as a large magic circle appeared on it.

"This is teleportation magic…" Leo tried to memorize the magic spell as fast as he could, but it was simply impossible for him to do so in such a short time.

Leo and Nina disappeared from the room shortly after.

When they reappeared, they found themselves inside a dimly lit and massive chamber.

"Where are we? Did we leave the cave?" Leo looked around with an alert face.

"No, we're still underground. Look at the walls. I think it teleported us to a secret area somewhere inside the cave." Nina said as she prepared to summon her servants at any moment.

"Leo, over there!" Lilith suddenly pointed at an altar that was located in the center of this chamber.

"Wow, what is this thing?" Leo approached the 10 meter tall altar that appeared to be made from some kind of smooth material, almost like jade, but it was pitch black in color.

Lilith suddenly flew to the top of the altar.

"Leo, there appears to be some kind of artifact up here!" She said after seeing the object sitting on the top of this altar.

"Really?! Wait a moment… This seems a little too easy. Is this a trap?"

Lilith looked around the altar and shook her head, "I don't see any traps."

"Leo, there's a magic circle right beneath this altar. You probably can't see it without the Spiritual Eyes, though." Nina suddenly said.

"Oh? Do you recognize what kind of magic circle it is?" he asked.

"No, I have never seen anything like this before. However, I can tell that it's a trigger-type magic circle, so it will activate by itself if a certain condition is met."

"How troublesome… What do you think we should do now?"

"I think we should just look around for now."

"Alright."

The two of them proceeded to walk around the enclosed chamber that didn't seem to have any paths or entrances. In other words, they were trapped inside this underground chamber that could only be accessed by the teleportation magic.