A-class Underground City

Two and a half hours later.

The blushing, heart-pounding sounds in the room had long since subsided, leaving only a lazy, contented quiet, and the sweet, warm fragrance that still lingered in the air.

Xu Feng lay on his side on the large bed, Mai Xiao Wen curled up in his arms, already fast asleep.

Her long eyelashes still held un-dried tears, the blush on her cheeks had not completely faded, her breathing was even and deep, and a hint of satisfaction seemed to linger on her lips.

Only a trace of pitiful vulnerability remained in her brows.

Faintly visible, a blush remained on the bedding.

Xu Feng gently pulled the soft silk quilt over her, carefully covering her and tucking in the edges so that not a wisp of cold air could enter.

After doing so, he leaned down and placed a light kiss on her smooth forehead.

The faint, unique scent of her hair and body still lingered at his nose, mixed with the breath left from their recent intensity.

However, after the brief tenderness.

The sharp edge and sense of urgency deep in Xu Feng's eyes reappeared quietly.

He got up silently, without disturbing the sleeping Mai Xiao Wen, walked to the wardrobe, and took out a clean set of dark casual clothes to change into.

Then, from his inner pocket, he took out the deep, mysterious blue invisibility pearl.

The pearl emitted an even richer, deep blue luster in the dim light.

Xu Feng gazed at the pearl for a moment, his eyes gradually becoming resolute.

With a thought, the pearl's light flowed, and an invisible wave instantly enveloped his entire body.

In the hazy glow of the nightlight.

His figure, like a pencil drawing erased by an eraser, became transparent from foot to head, blurring, and finally disappearing completely into the air.

In the room, only stillness remained, and the beauty sleeping soundly on the bed.

The night was as dark as ink, and Xu Feng's figure, like a melting wax figure, re-outlined itself clearly on the deserted streets outside the villa district.

He stopped, his mind sinking into the attribute panel only he could see:

[Name: Xu Feng]

[Breakthrough Points: 0]

[Qi Realm: Mid Blood Sea Realm (0/7w)]

[Body Realm: Mid Golden Body Realm (0/7w)]

[Strength Evaluation: A-class Mid (Normal State)]

Lines of data reflected clearly in the depths of his consciousness.

Since arriving in S City, he had used the invisibility pearl to his advantage, essentially becoming a cleaner for the S City underground city expedition circles, specializing in C-class and B-class underground cities.

Often, just as an expedition team entered and before they could formally engage, the monsters ahead would die in droves, and all valuable core materials would disappear.

At first, some teams were bewildered, but as the reputation of "Wind Hidden One" spread, coupled with some peripheral materials Xu Feng deliberately left behind, everyone gradually accepted this "pie in the sky" mode.

After all, why not complete the quotas easily without risking their lives, and even gain extra rewards?

Breakthrough Points accumulated steadily as a result.

Just last night, accompanied by another qualitative change and surge of Qi and Blood in his dantian, and the transformation of his physique under the continuous tempering of Breakthrough Points.

Both the Qi Realm and Body Realm broke through, reaching new levels.

"Normal State A-class Mid..."

Xu Feng felt the ceaseless, several times more vigorous and condensed Qi and Blood power flowing within him, as well as the bones and muscles beneath his skin that faintly glowed with a pale golden hue.

"Perhaps... I can try A-class underground cities now."

Once this thought arose, it grew like wild grass.

The reason he hadn't gone before was twofold: first, he lacked absolute confidence, especially when facing leaders who might possess peak A-class or even pseudo S-class strength.

Second, A-class underground cities were usually monopolized by large guilds with S-class Hunters, such as the White Tiger Guild.

More importantly, as his strength increased, Xu Feng also became increasingly aware of the limitations of the invisibility pearl.

Against A-class and above, especially Hunters specializing in perception or Monsters with A-class magic power, the pearl's stealth effect would be greatly reduced, making it easy for the opponent to detect abnormal movements.

Although they couldn't pinpoint Xu Feng's exact location.

They could still sense someone hiding in the shadows.

Previously, in B-class underground cities, those expedition teams chose to turn a blind eye.

Rather than being unable to discover him, it was more that they didn't want to, and were unwilling to provoke this mysterious and powerful "Wind Hidden One."

Not to mention the tangible benefits he brought.

But now, it was different.

His normal state A-class Mid strength, combined with the burst of the Blood Dragon State, gave Xu Feng the confidence to face A-class threats.

He also wanted to take this opportunity to witness the world's top combat power with his own eyes.

The true standard of S-class Hunters.

Especially Bai Luhao, the S-class mid-tier Hunter from the White Tiger Guild, known for his brutality and power.

According to the information he had gathered, Bai Luhao was a rare "complete transformation type" Hunter.

In his normal state, he possessed physical qualities no less than those of an S-class low-tier physical type Hunter, and once he entered combat, he could transform into a terrifying half-human, half-tiger form.

His Strength, speed, and defense would undergo a terrifying all-around enhancement.

But the price was that his temperament would become extremely berserk and bloodthirsty, only returning to normal after completely destroying his target or exhausting his stamina.

The A-class underground cities he led expeditions into often meant a combination of efficiency and risk.

Xu Feng's original plan was more conservative; he intended to raise his normal strength to A-class high-tier, or even touch the threshold of S-class, before challenging an A-class underground city.

But a sudden piece of news disrupted all his plans.

Just this afternoon, through special channels within the Wanbao Auction House and the Hunter Association, he confirmed a piece of intelligence:

Huang Dongshu, the brutal younger brother of Huang Dongshi who had immigrated to Country M and reached S-class low-tier, had already boarded the cruise ship returning to Country H from Country M.

His estimated arrival was within a few days, at a port in Country H.

His objective was self-evident.

Revenge for his brother's death was inevitable.

And Xu Feng, Cheng Xiaoyu, and Liu Chenhao, who were present at the time, were likely all on his revenge list.

A sense of urgency immediately gripped Xu Feng's heart.

"I can't just proceed step by step anymore..."

A cold glint flashed in Xu Feng's eyes as he fiddled with the invisibility pearl in his hand.

"I must quickly gain enough strength to fight back, or at least to protect myself.

I can't miss out on the resources of an A-class underground city, nor the opportunity to observe S-class Hunters."

Once his mind was made up, he no longer hesitated.

His body moved slightly, the ground beneath his feet didn't even make a discernible sound, and he shot out like an arrow released from a bow, speeding towards the southern suburbs of S City.

He wasn't at his full speed, but even so, his figure left a blurry afterimage in the night.

The air was pierced at high speed, emitting a low whimper.

The terrifying speed, nearing the edge of the sound barrier, made the journey of tens of kilometers feel like a stroll after dinner.

Just a few minutes later, a vast, temporarily cordoned-off, brightly lit abandoned factory complex appeared before him.

A dense fluctuation of magic power emanated from underground deep within the factory complex; even from a distance, one could feel the heart-pounding energy radiation.

This was the entrance to the A-class underground city the White Tiger Guild was about to conquer tonight—

The "Lava Grotto."

Outside the factory complex, a joint cordon manned by the military and the Hunter Association had already been set up, with heavily armed soldiers and low-tier Hunters with sharp auras patrolling the perimeter.

The interior was much emptier, with only a few figures exuding powerful auras conversing in low tones and calibrating their equipment.

Among them, an exceptionally burly red-haired giant, nearly 2.3 meters tall, wearing only a sleeveless tactical vest, with muscles bulging beneath his bronze skin, was particularly conspicuous.

Just standing there, he exuded an oppressive aura like a primordial beast. This was none other than the White Tiger Guild's S-class Hunter—

Bai Luhao!

Xu Feng stopped in a shadow several hundred meters away from the entrance. The light of the invisibility pearl flowed slightly, concealing his figure.

His sharp gaze swept across the scene, lingering on Bai Luhao for a moment.

"S-class... truly extraordinary."

Xu Feng thought to himself, while also more cautiously suppressing his Qi and Blood fluctuations to avoid alerting the other party.

Fortunately, there were no A-class Hunters specializing in perception in this group.

As long as Xu Feng didn't attack, no one discovered him for the time being.

He waited silently, waiting for the expedition team to formally enter.