In this trip to the vampire territory, Tatsuma's gains were not small.
Aside from the high-tier traits obtained by dealing with Rizevim's group, he also acquired many mid and low-tier traits from the Evil Dragon army and the Tepes Faction's vampires.
Selecting all the white and green traits, Tatsuma clicked to synthesize them in one go. The next moment, a large number of blue traits appeared in his sight.
Including the traits obtained from clearing MAR's demonic beasts earlier, and the traits obtained from clearing the cannon fodder of the Black Death Imperial Faction on the Island of Gozo, Tatsuma currently had a total of 3786 blue traits.
"Not bad."
A hint of satisfaction flashed in Tatsuma's eyes.
If all three thousand seven hundred-plus blue traits were used for upgrading, he could get three new Gold traits. Traits wouldn't multiply by being kept, so Tatsuma naturally wouldn't let so many blue traits gather dust in the inventory.
His gaze swept over the red traits, and he decided to upgrade the traits: Barrier Creation, Satan Bloodline, and Harem King.
Barrier Creation was a trait Tatsuma obtained from Ladon, with the effect of consuming energy to set up a barrier.
In direct combat, it could provide very limited enhancement. Compared to direct combat ability, Barrier Creation leaned more towards protecting allies and sealing enemies.
However, in Tatsuma's opinion, Barrier Creation had a third use.
Building a battlefield.
As his strength gradually increased, Tatsuma had already become a true human nuclear bomb. To prevent accidentally injuring allies during battle, having the ability to quickly build a battlefield was very important.
As for the reasons for upgrading Satan Bloodline and Harem King, they were much simpler.
Increasing training efficiency.
The hyperbolic time chamber-type thing on the third underground floor was completed, and next, Tatsuma would put it into practical use. With more time to train, the importance of training efficiency became prominent.
Thinking of this, Tatsuma no longer hesitated and upgraded the three selected traits to gold traits.
[Trait Promotion Successful, Congratulations on obtaining the Gold trait: Barrier Creation.]
[Trait Promotion Successful, Congratulations on obtaining the Gold trait: Satan Bloodline.]
[Trait Promotion Successful, Congratulations on obtaining the Gold trait: Harem King.]
Three consecutive notification sounds rang out, and the three upgraded traits appeared before Tatsuma.
The description of Barrier Creation was basically identical to before the upgrade. The only difference was that the barrier created with the same amount of energy was more solid.
As for the other two traits, there were quite a few changes in their effect descriptions.
[Satan Bloodline (Gold): Training effect +1500%, Demonic Power and Demonic Power recovery speed greatly increased, comprehensive suppression against Devils with bloodline concentration lower than one's own.]
[Harem King (Gold): Attraction to the opposite sex is greatly increased. For every member of the opposite sex who becomes infatuated, Charm +200%, Training effect +200%, can be amplified up to 12 times.]
Compared to before the upgrade, Satan Bloodline gained a bloodline suppression effect, while Harem King gained an effect of greatly increased attraction to the opposite sex.
"Not bad."
A hint of satisfaction appeared in Tatsuma's eyes.
Equipping the two upgraded traits, Tatsuma walked towards the corner of the material room.
Before leaving for the vampire territory in the morning, he had promised Yahweh to help her get a similar time room.
Practice makes perfect. Having built a time barrier once before, Tatsuma's efficiency was higher this time. In just ten minutes, a small time barrier formed centered on the material room.
After injecting a bit of Time energy to test the effect, he began to study the other machines in the materials room.
Time slowly passed.
Just as Tatsuma was fiddling with the food machine to make ice cream, a click sound rang out.
Tatsuma stopped his actions and looked towards the cylindrical machine that had stopped running not far away.
"That took quite a while. I thought it would be a bit faster."
"There was a small accident."
Yahweh led Valerie out of the machine, raised her hand, and pulled out a freshly printed report.
Just as she was about to say something, her gaze suddenly paused on Tatsuma's face.
Tatsuma asked, "What's wrong?"
"Hmm... How should I put it? I suddenly feel like you look quite handsome."
Staring at Tatsuma thoughtfully for two seconds, Yahweh felt more and more that something was off the more she looked.
"Strange, twenty minutes ago I didn't feel this way when I saw you. What did you do when I wasn't looking?"
"I had a bit of a breakthrough in strength." Tatsuma casually made up an excuse.
If there were no surprises, this should be the new effect of Harem King. However, this matter was related to the trait system, so Tatsuma couldn't reveal it to others casually.
"You really have a lot of secrets."
Yahweh saw through Tatsuma's thoughts and, just like before, didn't press further.
Raising the report in her hand and waving it, she brought the topic back to the main business.
"Let's start with the conclusion. Your blood is very effective for Valerie. As long as there is enough blood to support her, she can even use the Sephiroth Graal without side effects."
"That sounds pretty good."
Tatsuma handed over the two bowls of ice cream placed next to him, one for each person, and then asked, "What does 'accident' refer to?"
"Valerie's bloodline evolved."
"Evolved?"
"I know you're confused, but based on the results, that's the case."
Yahweh opened the report in her hand, turned to the second page on physical composition, and pointed to a line of data.
"Normally, vampires cannot be exposed to sunlight, otherwise they will be affected to a certain extent. However, after consuming your blood, Valerie's body developed resistance to sunlight."
"Now, even if she stands in the sun at noon and is fully exposed, she will only feel warmth."
"That sounds pretty good."
Glancing at Valerie who was quietly eating ice cream, Tatsuma thought for a moment and continued to ask, "Besides developing resistance to sunlight, are there any other changes?"
"There are too many."
Yahweh reached out and pointed to the lines of data on the report.
"Physical strength, soul toughness, demonic power quality... basically everything from the inside out has evolved."
"More importantly, this evolution is ongoing and is still continuing up to this moment."
Saying this, a hint of emotion appeared on Yahweh's face.
Tatsuma is a monster.
Having lived for so long, this was the first time she had seen a vampire's life essence improve just by drinking blood.
"In short, this evolution is a good thing. If it continues, Valerie's spirit and soul can both evolve."
"In the future, when she evolves to her limit, she might be able to use Sephiroth Graal without side effects just by relying on her own strength."
"I understand."
After Tatsuma took the report and scanned it, he began to explain the time barrier matter to Yahweh.
Because it was something they had just discussed in the morning, Yahweh hadn't yet researched how to make a Time energy collection device. In exchange for the snack making machine, she asked Tatsuma to help with the first charge. Tatsuma didn't refuse this.
The time barrier in the materials room was not very large. The Time energy consumed by one charge was roughly 10% of what was used to rewind the town previously.
After helping Yahweh complete the charge, Tatsuma left her to study the Time energy collection device.
As for himself, he brought Valerie up to the third floor and chose a room for her.
Just as Tatsuma was about to leave, Valerie suddenly reached out and grabbed his sleeve.
"What's wrong?"
"Tatsuma, I want to drink blood."
A hint of blood red appeared in Valerie's pupils, and her gaze towards Tatsuma became increasingly eager.
"We agreed, no backing out."
"Don't worry, I remember."
Tatsuma pulled down his collar, revealing his neck.
Seeing this, Valerie, who was gradually losing her rationality, hugged Tatsuma, stood on her tiptoes, and bared her fangs.
Snap!
"It hurts."
"You really don't learn your lesson at all."
Tatsuma shook his head helplessly and once again used Senjutsu to heal Valerie's teeth.
"Cover your teeth with demonic power, and then mobilize the power of your bloodline to strengthen them."
"You're a vampire, how can you not even do something as simple as drinking blood properly?"
"Ugh... I forgot as soon as I thought about drinking blood."
Valerie snapped out of the verge of losing control and strengthened her teeth according to Tatsuma's instructions.
After being strengthened, her two small fangs increased sharply in strength, and she finally managed to suck Tatsuma's blood.
The intoxicating scent filled her mouth, and Valerie's urge to drink blood instantly overwhelmed her mind.
More, I need more.
The blood filled with rich vitality flowed into her body, and the temperature of Valerie's body surface began to gradually rise.
In a trance, all the surrounding scenery disappeared in Valerie's eyes. In the blood-red world, the only thing Valerie could see was the man in front of her, looking calm, who had pulled out a book from somewhere and started flipping through it.
[Valerie Tepes has fallen for you, the trait Harem King has gained an amplification.]