Extracting blood from around 50 orc corpses gave Tristan 300 points of Blood Essence, meaning, he obtained an average of 6 Blood Essence for each orc. The result was pretty decent, especially considering that the human he extracted from before only managed to give him 2 points of Blood Essence.

This time, Tristan did not bother hiding the fact that he just used his Blood Extraction skill in front of everyone. Though what appeared was not blood, but just a very thin, red mist, everyone in the group must have realized that he just used elf magic of some sort on a pile of corpses. Tristan had no reason to explain the true nature of the mist to the others, but Layla had noticed it and started to worry. Considering how the goblin called Tristan a 'blood elf', he could understand why Layla was worried.

After extracting the blood essence from the orcs, Tristan walked towards Piyo's corpse and started to loot his items. He took a pair of small crossbows, something that appeared to be tiny explosive cartridges, along with the item that had caught his interests for a while.

The thing on Piyo's wrist that looks just like an oversized wristwatch.

Tristan unclasped the item from the corpse's wrist and put it on his own. Before he could react, a slight, dim glow appeared on the bracelet and the system installed in his head responded.

[Connecting to OPR Device]

[Integrating system]

[Device Synchronization started!]

[20%... 60%... 90%... Synchronization completed]

Tristan was caught off-guard by his system's response. Considering the notifications, it seemed that something beneficial just happened, but on the other hand, this event made him realize that he knew almost nothing about the system installed in his head. What else could this mysterious device in his brain do, and what are the limits?

Also for it to automatically do this thing without his consent worried him.

Tristan aimed the device attached to his wrist towards Seth to give it a try.

[Target scanned]

[Human, Male]

[Battle Power: 42]

"Ah, so it measures someone's combat prowess and converts it into numbers. Seems simple enough." Tristan mumbled and turned around to aim the device at Barry.

[Human, Male]

[Battle Power: 45]

Barry was a little bit stronger than Seth, which gave him a little bit of relief. Now that he had confirmed the device is safe to use, he aimed it towards his sister

[Human, Female]

[Battle Power: 13]

[Spirit Force: 32]

Tristan was a little surprised when he saw the numbers. Before, Layla had told him that she has around 10 battle power and 30 spirit force, but it seems that her power had increased in the span of a few days.

This made Tristan wonder, how does it actually work?

Tristan made a mental note to ask the Magus Guild more about it. However, he was more fixated on Piyo's dead body at the moment. He can't resist the temptation to do his extraction skill.

In the end, he decided to give in

[Blood Extraction]

[Received 100 mid-quality blood cells]

[50 Blood Essences extracted]

It was a decent amount. Though it was not as much as what he obtained from the corpses of the orc champion, it still a pretty big number. From this attempt, Tristan could conclude that a fighter around Piyo's current level, which is a silver-badge adventurer, would give around 50 blood essence. Logically, a stronger fighter would be able to provide him with more blood essence.

Tristan grinned at the number of Blood Essence he obtained today. But, his happiness was once again interrupted by an ear-piercing scream full of grief and anger.

"PIYOO!!! What did you DO! You BASTARDS!"

It was a scream by Borin, who had just awoken. He could clearly see his little brother's unmoving body with blood coming out from the side of his head.

"No!!!.. NO!!.. Why... Little Brother... No!!!"

Seeing the sadness and despair in Borin's face, Tristan can somehow relate. However, he was more concerned for his own sister right now. Tristan can see his sister facing away so no one can see her face. He knows that Layla's heart is screaming in pain right now.

Tristan pulled out his massive blade and walked towards Borin before raising his sword at the man. Meanwhile, Borin did not react, he kept on staring at Tristan with defiance in his gaze.

Right as Tristan was about to swing down, Layla shouted in desperation.

"Triss! Don't!... don't!"

Tears had stained her cheeks and more continued to stream down her face, but each word of what she said was laden with conviction. Tristan could see her determination to stop him, and that was enough to make him lower his sword.

Meanwhile, Borin became even more enraged.

"You better KIll me NOW!! Kill ME!! Or Fucking Trust me that I will MAKE You PAY!"

The Truth is when Tristan found a reason to kill Borin, he felt his urge to kill rise up. This is the same chaotic feeling that he had when he killed the poor man from the tavern. But seeing his sister's, Tristan pushes himself to restrain the urge.

All those years in prison, Tristan has seen many inmates, murderers who killed just for a bowl of food, and also those murderers who break after their first kill. Tristan understands the burden of own first kill. He worried that killing the victim's brother again for her sake might affect badly on her even more.

He was trapped in between a rock and a hard place. Releasing the man would just create problems in the future while killing the man would just direct Layla's ire towards him.

Tristan thought for a few seconds, and an idea suddenly came to him. Though he has no idea if this method would work, this could be a good opportunity to experiment on his second skill, considering that he just obtained a large amount of Blood Essence.

[Blood Seal]

[Human, Battle Power 58]

[Blood Seal would require 200 Blood Essence to take effect]

----------------------------------

Written and Directed by Avans, Published by NovelFull,

For discussion Join Avan's Discord server: https://discord.gg/7ngn7yN9xN