Bloodline Ability is an ability possessed by a demon family. This ability will continue to be passed on to the next generations. Because of that, all members of a demon clan would have the same Bloodline Ability.

Damien, as a human who turned into a demon using the blood of Dark Souls, you could say he is a demon who has the bloodline of Dark Soul. That's why he also has the same Bloodline Ability as that of Dark Soul.

"But how to use it, Master?"

“Easy, say 'Detect Soul' and imagine the shape of the soul. And remember, imagination is key in using all Bloodline Abilities!”

[Of the many fictional stories that I have read, the soul is usually illustrated as fire or there are also those that illustrate its shape as the body it occupies. But which one is correct?] "What shape is that soul, Master?"

" The soul had the form of the body it occupied, but it was also blazing like fire."

"For the color?"

“Varies.”

"Okay, now time to try." Damien said while looking at his master before imagining a soul shape and saying, “Detect Soul”

"Wait!!" Amon hastily wanted to stop him.

But he's too late. Damien's Detect Soul had activated and made him scream in pain as he saw Amon's soul. “Aaaaah!! My eyes are burning!!”

There was no fire in Damien's eyes, but they still had an extremely painful burning sensation.

"Don't look at this King's soul!" Amon said with a sigh. “You are too weak to see the soul of this King.”

“Why did Master just say that? Should have said earlier." Damien said while covering his sore eyes.

“This king did not expect that you would be able to use that Ability in the first try. You are more talented than what this King expected.”

“This is not the time to praise me. Now what about my eyes?”

"Just leave it! You should have extraordinary Regeneration. After all, you have the blood of the five Great Demon Kings.”

And true to what Amon said, Damien's eyes recovered in less than a dozen seconds. “Wow… this is amazing.”

“Thank this Master of yours who gave you that power!” Amon said with arrogance.

[Even though you made my eyes burn?] But Damien kept saying, "thank you, Master."

"Smart kids. Now try again! And so that you don't accidentally see this King, this King will enter into the ring.” Amon said before he turned into dark blue smoke and entered into the silver ring that was worn on the middle finger of Damien's right hand.

"How did Master do that?"

“You will understand when you are strong enough.”

“For now I will try this again. Detect Soul."

This time Damien succeeded in using Detect Soul without a hitch. But since all around him were trees, which were also living things with souls, Damien only saw the souls of the trees.

"Master, I only saw the souls of the green trees."

"You just imagine the souls of the trees disappear and you don't see them." Amon said from inside the ring.

"Okay." Damien did as Amon instructed. "It worked."

After not seeing the tree souls, Damien only saw the souls of the beasts. The souls are clearly visible without being hindered by colored physical objects.

“Now imagine you don't see those soul beasts, and only see the soul of Invisible Venom.” Amon gave another instruction.”

Damien did according to the instructions Amon gave him.

And in one try he could actually see the invisible Venom's soul. But it's a pity that the Invisible Venon's soul that Demian saw was very small, as small as a pebble. This meant that the distance between Invisible Venon and Damian was very far.

“I managed to find the beast, Master. But it is very far away.”

“That's close. You've never run with your new body, have you? Try!"

"Okay." Damien then ran.

The result really surprised him. He ran so fast that the trees he passed were blurred.

“This is Amazing!” Damien shouted in delight at his new ability. He then increased his speed again.

But unfortunately, because it's too fast...

*BOOM* Damien crashed into a tree. “Aww!”

He couldn't control his speed yet. His vision became blurry as he ran at high speed, besides he couldn't turn around easily.

"You're stupid huh. Don't run so fast in the forest!”

“Yeah…” Damien answered while holding his bleeding nose. "But luckily I've arrived at my destination."

Damien saw a boulder to the right of the tree he had hit. It was within that rock, he should have seen the Invisible Venon's soul.

"Is the beast hiding behind the rock?"

“…” Ammon did not answer.

Suddenly the big rock was lifted, as if something was pushing it from below. From between the rocks and the ground, a large mouth was seen opening. The mouth suddenly sucked in everything around it violently, and made Damien's body pulled into the mouth.

"What's that!!?" Damien shouted while holding onto the tree he hit to keep his body from being sucked in.

“Stone Turtle. This animal will pretend to be a rock, and will suck up any prey that passes around it. It is likely that the Invisible Venom got sucked into its stomach as well.”

*CRACK* As Amon spoke, the roots of the tree barely managed to take the Rock Tortoise's tug on it

[This is bad. At this rate, this tree will be sucked in and I too will follow,]

Damien quickly picked up the Revolver. Seblum shot the turtle in the mouth.

*BANG BANG BANG BANG* Four shots were fired by Damien.

“Growl!” Feeling the pain in its mouth, the turtle roared before closing its mouth.

After not being sucked in again Damien couldn't stay silent, he quickly reloaded his Rvolver with bullets. Just as the turtle was about to open its mouth again, Damien had finished reloading. Without giving the turtle time to retract it, Damien fired a shot at the turtle's eye.

*BANG BANG* Two shots hit the turtle in both eyes. “Growl!”

“What incredible accuracy.” Ammon praised his disciple. “That is something most demons don't have.”

"Thank you for the compliment."

"You better run now, because the beast will go berserk after losing its sight."

“Okay…” Damien didn't know why he had to run because of the rage of a slow-moving animal. But he still carried out his teacher's instructions.

*BOOM* As he was running Damien heard an explosion, looking back he realized that what had exploded was a rock or you could say a Rock Turtle shell. And Damien immediately realized why he had to run, because the rocks thrown by the explosion were so many, big, and fast.

A rock that was thrown suddenly hit a large tree in front of Damien who was running, with just one crash from a rock the big tree immediately fell.

Seeing that, Damien had cold sweat run down his back. With all his might he increased his speed.

"If you keep picking up speed, you'll hit a tree again."

"So what should I do? The stones are still rolling off the turtle."

*BOOM BOOM BOOM* Sounds of explosions are still often heard whether it's from turtles throwing rocks, or rocks hitting something.

"Jump, then look back, and shoot the rocks that are pointing at you."

With all his might, Damien jumped up. What surprised him, in one jump he managed to reach a height of one hundred meters.

“Uwaaaaaah!!” Damien shouted who panicked because his body first floated in the air.