I became the Lord of the Eternal World in Tokyo.

This being of such caliber stood right beside him, annihilating demons with almost no mercy...

As for how much he can learn before the wave subsides, that depends on Uesugi Tetsuya himself.

Uesugi Tetsu stopped his wild thoughts, swallowed a portion of calming incense ash, and began to carefully observe the tengu's movements, the trajectory of its spiritual energy flow, and the subtle traces of its swordplay.

With the Eye of Interpretation opened, all of the Tengu's movements became slow and clear in an instant.

Once you enter a state of flow, time seems to fly by.

Uesugi Tetsu felt as if only a blink of an eye had passed before the blurry cityscape of Shizuoka disappeared from his peripheral vision.

Slightly weary, Karasu Tengu withdrew his hand and asked Uesugi Tetsu, who was exiting the Flow of Heart, "Operator Uesugi, did you gain anything?"

[You have observed and gained some understanding of the "Crow Tengu's" use of spiritual power; your skill, Spirit Control Technique - Qi Proficiency +100!]

[You have observed the "Crow Tengu's" swordplay and gained some understanding; your skill, Natural Mind-Body Flow, proficiency +100!]

[You have observed the "Crow Tengu" drawing its sword and gained some understanding of it; your trait, Sword Principle (8%), has now been changed to Sword Principle (9%)!]

Uesugi Tetsu shook his head, and after snapping out of his high-speed thinking state, he nodded seriously: "Thanks to Your Excellency, I have gained a great deal."

"That would be perfect."

The tengu smiled.

When Uesugi Tetsu looked up again, he found that all the red dots on the map projected on the large screen had disappeared, leaving it completely clean.

Half of the eighteen Onmyoji around also took a break, sitting cross-legged in place to adjust their breathing.

“There’s still plenty of time before the next wave.” Karasu Tengu plucked a black feather from his arm and created a clone. “Let my clone take you, Uesugi Operator, to retrieve the Scale Armor first.”

His main body and his clone spoke together to Uesugi Tetsuya.

"The Five Elements Qi Sea, with metal and water mutually generating each other... I'm sure you, Uesugi Operator, have been waiting impatiently for this for a long time."

The clone took a step forward, and a voice came: "Please follow me."

Metal and water mutually generate each other?

Uesugi Tetsuya's heart stirred, and the knowledge of the five elements' mutual generation and restraint came to mind.

He originally thought that he would need to collect all the five elements to see this effect, but he didn't expect it to work now.

He quickly followed behind the tengu clone and walked out of the top floor.

Shizuoka City Special Affairs Department, 29th floor.

After overcoming numerous identity verifications and checkpoints, Uesugi Tetsu finally saw his original destination in Shizuoka Prefecture, which was also the "reward for the mission" that Nanjo Manami had mentioned.

The dim yellow light cast a shimmering, multicolored glow on the transparent glass case.

Countless complex and vibrant colors emanate from that azure blue scale, meticulously riveted together from each individual scale, resembling the most exquisite gemstone in the world.

However, on this exquisite and perfect scale armor, there are dozens of glaring gaps, which have almost taken up a quarter of the scale armor.

In Uesugi Tetsu's eyes, the surface of this dazzling scale armor even emitted a faint golden light.

A radiance belonging to the epic.

The tengu tapped the glass surface with its finger, causing the glass, which seemed to be alive, to retract.

In the secret chamber, he stared silently at the scales for a long while before reaching out and taking out the most alluring deep blue scale from the very center of the scales.

After it was taken away, Uesugi Tetsu could clearly see that the entire scale armor had changed from a light gold to an extremely deep purple.

The tengu turned around and handed the scale to Uesugi Tetsuya.

He said softly,

"Hai Yiguang... is an old friend of mine."

"I'm entrusting this most important one to you, Operator Uesugi, both as an investment in the next generation and because I believe you won't let it go to waste."

The scale landed in Uesugi Tetsuya's palm. Even after sitting there for a long time, it was not cold. Instead, it exuded a warm and smooth texture like unpolished jade.

A deep purple light enveloped the scales, and a panel popped up—

【The Scales of the Sea】

【Quality: Epic+】

[—The scales on Hai Yiguang's chest. They had witnessed hundreds of years of world changes and the transformation of the world along with Hai Yiguang, and after being shed, they had undergone the baptism of a long time.]

Now, it's in your hands.

The quality of the Epic+ is almost equivalent to the Ubume Feather that he bought from Sheng Hai for 6,000 points.

Uesugi Tetsu glanced at the other scales on the scale armor—these scales were probably only of ordinary epic quality, or even ranked at the bottom of epic quality.

The fact that the tengu gave him this single, unique scale was indeed a great gift.

As soon as he held the scale in his hand, Uesugi Tetsu clearly felt his Qi Sea, or rather, the Totsuka Sword fragments within his Qi Sea sensed something, causing the entire Qi Sea to become agitated.

The Tengu noticed the change and chuckled, "If you're going to use it to define your Qi Sea these next few days, it doesn't matter if you stay here now."

"Thank you."

Uesugi Tetsu gripped the scales tightly.

……

Meanwhile, the Arakawa Ward Special Affairs Division.

"You guys are really patient, only showing up now that this wave has already subsided."

Inside the office, Nanjo Manami, reclining in her chair, yawned sleepily and snapped her fingers softly.

In an instant, the demons who had just completed their advancements in various parts of the Arakawa district, before they could even cause any trouble, all perished in the strange fluctuations of spiritual energy.

In the distant sky, Dr. Li Dao, who had just completed his second celestial survey without concealing his movements, marveled at the sight.

"This woman is truly terrifying. She's only been above the cap for a little over a month, and she's already reached this level..."

Dr. Li Dao touched his chin, looking somewhat puzzled.

"Speaking of which, isn't she working overtime every day? Where does she find the time to cultivate?"

Arakawa Ward, Uesugi Tetsu's residence.

Ririko, sitting alone in the center of the dojo, calmly opened her eyes.

A pure sword domain immediately expanded from her own center, cutting down and shredding all the demons and monsters near the mansion before Nanjo Manami could make a move.

At the same time, a train bearing the Kisaragi logo was speeding along amidst the surging waves, sending batches of cowardly demons who had been mistakenly sent into the mortal world back to the ordinary world.

"Next stop, the Warring States Cemetery..."

"Next stop, the Warring States Cemetery..."

As soon as the train doors opened, many little demons who had emptied their pockets were hurriedly sent off the train.

Outside the car door, two polite passengers stood on either side, waiting to get off before boarding.

The girl on the left, carrying a small iron hammer on her shoulder and with wheat-colored skin, muttered uncertainly, "The third trial requires taking a vehicle. Could I have gotten on the wrong one?"

The tall passenger on the right, his face covered by an iron mask, squinted and muttered to himself, "So this is the train that the lord spoke of, the one that leads to the mortal world..."

After everyone else got off the train, the two complete strangers boarded together.

The train doors slowly closed.

……

After obtaining the scales, Uesugi Tetsu temporarily bid farewell to the Karasu Tengu who needed to prepare for the next wave and went to a quiet training room that was not in use.

Uesugi Tetsu looked into his dantian and found that even after several minutes, the Totsuka Blade fragments that had fused with the Hannya card were still active.

They couldn't wait for the Scale Armor of the Sea-Shining Light.

Prior to this, the Totsuka Blade fragments and the Ubume feathers, which belonged to the metal and fire attributes respectively, were completely unrelated and were naturally two separate definitions.

But this time is different.

"Metal generates water, and water overcomes fire. I wonder what new effects this will bring."

Uesugi Tetsu still had some expectations.

To reiterate the previous two instances, Uesugi Tetsuya used his inner energy to envelop Hai Yiguang's scales and skillfully placed it above his dantian to observe its reaction.

The next instant, the feathers of the Guhuoniao rose from the sea of ​​qi with a bang, and its whole body was engulfed in raging black flames, clearly showing its dislike for the scales.

In another direction, the Prajna card, enveloped in golden light, rose up, welcoming the arrival of the Scaled Robe with great friendliness and even anticipation.

Finally, the scales floating in the air remained completely still, showing no reaction to hostility and ignoring any goodwill.

He was calm and composed, allowing Uesugi Tetsuya, the master of the Qi Sea, to command him.

Uesugi Tetsu nodded repeatedly: "That's right. When those fragments and feathers came, they were all so frantic that it was impossible to tell the eldest from the second eldest."

He released his control over the scales, allowing them to define their own boundaries within his dantian.

Then, a tangible, thick, and powerful hand of qi grabbed the feather of the Guhuoniao, which was ready to attack, and pressed it down in an instant!

Gululu~

Hot bubbles rise to the surface of the sea of ​​gas, then burst with a crackling sound.

It was obvious that Guhuoniao's feathers were very unwilling.

But no matter how unwilling it is, it has to obediently submit to the visible regulation.

After circling above the sea of ​​air, the azure scales finally landed above the pinkish-white sea, slowly descending and merging with the four-tailed fox card that had just emerged from the sea surface.

There was a crash.

Uesugi Tetsu could see that the already lifelike four-tailed fox card was now framed with a shimmering azure border, and even the background inside the card had turned into a dazzling rainbow.

The scales of the sea's strange light are defined here.

[Because your empty sea of ​​qi is affected by the "scales of the sea's strange light", your willpower +1].

[Because your Void Sea is affected by the "Scales of the Sea's Strange Light" boundary, your Spiritual Arts +2].

[Because your Void Sea is affected by the "Sea Light Scales" effect, your water resistance has increased!]

[Due to the definition of "Sea-like Scales," "Fragments of the Totsuka Sword" have a synergistic effect with it!]

Please check out the联动 (linkage/interaction) effect yourself!

Boom boom!

At that moment, the Prajna card darted to the side of the Four-Tailed Fox card, pressing close to it, with no longer any previous animosity or rejection.

Golden and blue light burst forth simultaneously, then intertwined to become even brighter.

The entire sea of ​​qi emitted a thunderous roar, and for the third time, it expanded wildly toward its boundless boundary.

But this is just the most insignificant change.

Under the gaze of the Eye of Interpretation, the two avatar cards, which are fused with the defining elements, begin to rotate at a fixed rate, constantly strengthening themselves and their essence by borrowing the power of the other.

In addition, the amount of protective energy produced in the same period of time has increased significantly compared to before, more than doubling.

The body's self-healing ability has thus been greatly enhanced.

The effect of the mutual generation of metal and water is evident.

This is merely the effect of the interaction between two defining attributes.

"A vibrant sense of life has also emerged within my Qi Sea..."

Uesugi Tetsuya looked puzzled, not understanding what this feeling was bringing about.

Of course, the effects of defining scales are not all positive.

—The feathers of the Guhuoniao were isolated.

Under the ever-increasing brilliance of azure and gold, the black of the Ubume feathers appeared particularly dull.

At this moment, it was hiding beneath the sea surface, and even though the giant hand had disappeared, it no longer released its power as arrogantly as before.

But this is a minor matter.

The two transformation cards were busy maintaining the balance of metal and water, and had no time to care about the lone Ubume's Feather.

"Given the experience of previous definitions, this one was surprisingly calm."

Uesugi Tetsu pushed open the door to the quiet room, feeling the increasingly abundant power and energy within his body. He went to the window and quietly listened to the surging sound of the waves between heaven and earth.