"Since the other side was unreasonable first, there's no need for us to continue following these broken rules." Wang Xiyi was evidently satisfied with Ganna's view, "The dynamic model has brought us this close to Victory Avenue, which is already fulfilling its task... For this final stretch, it will depend on our own abilities!"

In her dragon transformation state, Wang Xiyi could withstand a load over three hundred times her weight, more than enough to carry Zhong Ling's eerie remains—as for Sun Hang, he directly used Taisui mycelium and liquid metal to mold a pair of wings for himself after the style of the black dragon's wings. Adopting the concept of "brute force bricks flying," despite his body structure being completely incompatible with aerodynamics, the sound of his wings flapping still successfully lifted him into mid-air.

"So mycelium can also turn into wings?" Wang Xiyi glanced at him, "Then why didn't you fly by yourself before?"

"Because it's tiring." Sun Hang replied casually, "Besides, the ability of electromagnetic acceleration can completely replace wings. The only flaw is that it's hard to control the precision, making it difficult to stop firmly."

"It's still four kilometers to Victory Avenue, why not just use electromagnetic acceleration to catapult us over?" Wang Xiyi suggested, "Using direct impact against buildings to brake is not impossible either, don't worry, I can protect the two of them."

"Alright, a swift resolution." Sun Hang nodded, and blue-white arcs started flickering in the air around him.

But just at that moment, the land under their feet and the surrounding buildings suddenly curled up, the entire world—including them all—flipped instantly, as if they had originally been in a large bowl, and now the bowl suddenly turned over, pinning them at the bottom.

The most unexpected thing for Sun Hang was that as the big bowl flipped, the space inside also flipped along with it, making them instantly take on an upside-down position just like the eerie architectural features around them, with the blood in their bodies rushing to their brains.

"Damn it!" Wang Xiyi cursed, flapping her wings desperately to adjust her posture, hovering again in the air.

Sun Hang, at the moment of the space reversal, had already clung to a wall, looking thoughtfully at the ceiling now tightly sealed together.

The land that was full of gaps and breaches had now returned to a solid, unified state, completely sealing them underground.

As the flames flickered, the dragon flame at the tip of Wang Xiyi's tail became the only source of light in the entire space.

With two "clicks," the high-beam searchlight on the shoulder of the Willow Leaf Saber armor turned on, instantly illuminating the surroundings as if it were daylight.

Except for the abyss beneath their feet, regardless of the brightness or penetration power of the searchlight beam, when shining downward, the beam would be swallowed by endless darkness within less than a hundred meters.

"I just tried to contact the front-line camp, but there's no response." Yan Yu'an said, "It should be at the moment of space reversal, our communications with the camp were cut off."

"The ground doesn't look too thick, should we try to see if we can break through it?" Wang Xiyi looked up at the dome above and said.

Speaking of the dome, in fact, what was now hanging above their heads was a very complete street, with the buildings on both sides in the same style as the Baikal Remains on the ground.

If the direction of gravity could be reversed and embedding luminescent bodies to act as the moon and stars deep in the abyss, the underground and aboveground parts of the Baikal Remains would essentially be indistinguishable.

"If we could reverse the direction of gravity..."

Sun Hang had a thought, and the feeling of the world spinning came again.

"Damn it, again?" Caught off guard, Wang Xiyi slammed her back heavily on the street-ground-turned-ceiling, with Zhong Ling and Yan Yu'an directly pressed on top of her.

"Now it's normal." Sun Hang's feet were firmly planted on the street, surveying the surroundings.

"Come on, was it you causing this?" Wang Xiyi climbed up from the ground, rubbing her back with some dissatisfaction.

"This time it was me. The previous time, it wasn't."

"Did you just rotate the space again?" Yan Yu'an asked suspiciously.

"No, I just reversed the direction of gravity applied to us." Sun Hang shook his head, "If I rotated the entire space, the energy consumption would be enough to drain me dry."

"So, from a normal person's perspective now, we're head down, feet on the ceiling 'hanging humans?'" Wang Xiyi asked.

"Yes."

"It feels a bit like a zero-gravity environment in a space station... Oh wait, if it were entirely zero gravity, we'd be floating around everywhere." Wang Xiyi muttered to herself. 𝚏𝗿𝗲𝐞𝐰𝚎𝕓𝐧𝚘𝘃𝗲𝐥.𝐜𝚘𝕞

"The original gravity in the underground space was normal, which indicates we're likely still on Earth." Sun Hang stated, "That's good news." Zhong Ling turned on her tactical flashlight, scanning the surroundings as she whispered, "Kind of looks like."

"Looks like what?" Wang Xiyi immediately inquired.

"This kind of hanging-structure city has actually existed in human history." Zhong Ling said.

"Ah? An underground city? With buildings all hanging upside-down?" Wang Xiyi blinked, "This shouldn't be a city from our Xiazhou Federation, right? In my impression, our country shouldn't have such avant-garde city designers."

"If I'm not mistaken, the Puppet Master refers to the 'fortress city for countering uncanny creatures' built in the Hakone region of Dongying. On the surface, the fortress city looks indistinguishable from a regular city, but there are no civilians inside, only large amounts of automated weapons and 'special lure devices' to attract uncanny attacks. When uncanny creatures from the deep sea land on the Hakone coast, they are lured into the fortress city's attack range. At this point, all the city's buildings flip and sink underground, replaced by numerous heavy automatic weapons controlled by AI, delivering devastating blows to the lured uncanny creatures..."

"And what happened to that fortress city then?" Sun Hang inquired.

"It was abandoned. In the early stage of the uncanny war, the uncanny landing on the eastern coast of Dongying wasn't too numerous, and the fortress city could attract most of them, relieving defense pressure for other coastal cities... But when the war reached the mid-stage, the uncanny launched a saturation attack on Honshu Island, and the fortress city lost its ability to lure them... Now it's probably just ruins." Yan Yu'an said.

"Two cities, designed by the same designer." Zhong Ling suddenly added.

"Ah?" Yan Yu'an was somewhat surprised looking at Zhong Ling; she was aware of the existence of the Hakone Fortress City but didn't know much about the specific information of that city.

After all, Dongying had already fallen into the Surrendered Area many years before she was born. Her understanding of the fortress city was limited to some common knowledge.

"The person who designed the Hakone Fortress City was named Yamaguchi Masakatsu. After Dongying fell, he took refuge in the Siberian Federation and later fled with the Siberian Federation survivors to the Lake Baikal Region... The design blueprint for Lake Baikal City initially came from him."

"But he didn't design Lake Baikal City as a fortress city, did he?" Yan Yu'an's expression was a bit peculiar, "I visited Lake Baikal City several times before it was destroyed. Given my access level, if there was still an underground part of Lake Baikal City, I shouldn't have been unaware of it."