Shen Yiyue's figure leaned to the left and suddenly fell into the black door, while Ning Yu and Ning Xuan were attracted into the white door.

In fact, such attraction was not enough to shake Ning Yu's current physical strength, but she still pretended to be powerless and fell into the white door with Ning Xuan.

Before entering different doors, Ning Yu and Shen Yiyue looked at each other strangely, and the two seemed to have exchanged some kind of signal.

Then they each entered the spiral passage that looked the same as on the map.

There is no light in this passage, and I can't feel the direction. Sometimes it seems like I'm moving forward, and sometimes it seems like I'm moving backward.

But Ning Yu knew

"Xiaoxuan, what's going on?"

Ning Yu was in front, wanting to ask Ning Xuan if she knew something, and Ning Xuan followed closely behind.

But she didn't answer, instead she covered her head in pain again.

White smoke was coming out of the prosthetic device on his body, as if there was some malfunction.

"My head hurts, sister."

The blue light in her eyes flickered, and she seemed to be in chaos.

Ning Yu turned around and held Ning Xuan's hand. The mechanical wings behind her seemed to have been retracted due to lack of energy.

Ning Yu looked at the painful and helpless expression on her face, gently hugged her, and held her body, which was smaller than her own, in her arms.

"Don't be afraid, my sister is right here."

Ning Xuan felt Ning Yu's gentle movements, her eyes slowly widened and then seemed to have suddenly recovered from something.

Her expression suddenly changed drastically, now filled with anxiety and urgency:

"No, sister. This is a trap."

The words were full of mechanical fault sounds, and the syllables of the word "trap" even began to repeat endlessly.

Ning Yu noticed that blue tears were flowing from her eyes, and it seemed that the problem was already quite serious at this moment.

She recognized such tears. She had seen them countless times in her reincarnation. Ning Xuan would only shed tears like this for herself.

Ning Yu raised her hand and gently wiped away the tears on her face, staining her own white little hands a light blue.

These tears were not as hot and fiery as those of humans, but icy cold. However, Ning Yu could vaguely feel something from them.

"Go."

Before she finished saying the word "go", the light in Ning Xuan's eyes completely disappeared, and she returned to her previous calm and peaceful look.

She didn't die, but seemed to be replaced by something.

Now Ning Xuan looked at Ning Yu silently, and the fault on her body seemed to have disappeared.

Ning Yu no longer looked at her, but did not let go of Ning Xuan's hand.

"Sister will come to rescue you soon."

Before long, following the instructions on the map, the spiral passage reached its end, and a circular arch appeared in front of Ning Yu.

She looked to the side but did not see Shen Yiyue, and had no idea where the black door she entered took her to.

"Your sister is in there."

Ning Xuan next to her spoke again, but this time her voice had become extremely cold, as if she had never known Ning Yu.

Ning Yu turned her head and stared at Ning Xuan, her amber eyes gleaming coldly. She calmly looked into the eyes that originally belonged to Ning Xuan.

"Leon, have you ever heard of inhibition?"

Ning Xuan didn't answer when she heard this, but just smiled and said nothing.

Ning Yu also smiled at her and narrowed her eyes.

She said nothing more, walked forward and pushed open the door of the archway.

“Boom boom boom boom.”

The door of the arch slowly opened, and the inside was filled with dim red light, allowing people to barely see what was inside.

Ning Yu walked straight in. Under the dim light, one container after another appeared. All of the containers were empty, but filled with some kind of liquid.

It seems that there should have been something in this liquid.

Ning Yu's vision was also very good in the dark. Her gaze passed through countless containers and reached the farthest point.

There was a head floating quietly in the container. She was very familiar with that head. It was Ning Xuan.

At this moment, she closed her eyes tightly and floated in the liquid with a painful look on her face. All the prosthetic devices on her body seemed to have been removed.

Then there was Ning Xuan behind her at the moment. Before Ning Yu turned around, she had already heard the sound of a blade breaking through the air behind her.

"clang!!"

The blood kite suddenly blocked Ning Yu's way. Behind her, Ning Xuan's blade was hitting the blood kite. The light from the blade illuminated Ning Xuan's cold eyes.

Ning Yu's fighting ability was actually far superior to Ning Xuan's, but she did not use any killing moves. Instead, she pulled Ning Xuan's blade to the side.

“Bang!!”

Then there was a crackling sound, and Ning Xuan's blade slashed on the container next to it, shattering it immediately.

The liquid inside immediately flowed all over the ground and began to spread on the ground.

Ning Xuan slowly rose into the air, the prosthetic device behind her emitting bright flames. She raised her chin and looked at Ning Yu with contempt:

"Why, you don't dare to hurt your sister?"

All the flames burst out suddenly, and she attacked Ning Yu again at an extremely fast speed. The metal blade and Ning Yu's blood kite collided again.

"Stop using my sister's body to talk."

Ning Yu held the Blood Kite in one hand and easily blocked Ning Xuan's attack.

The two people's blades clashed together. Ning Yu did not take any further action, but other devices extended from Ning Xuan's prosthetic device.

A blue light began to condense on the probe that appeared above, and the target it was aimed at was Ning Yu.

Ning Yu sensed a hint of danger and was hesitating whether to destroy these devices.

But at this moment, Ning Xuan covered her head again, fell to the ground in pain, and her whole body was shaking, as if she was struggling with something.

"I won't allow you to hurt my sister!!"

There was a flickering light in her eyes, as if the real Ning Xuan's consciousness had awakened again. She raised one of her blade arms and then chopped it hard on the other arm.

“Bang!”

She cut off the arm herself, and it fell to the ground, exposing the transistors and circuits inside, and emitting crackling arcs.

She had to stop herself from hurting her sister any further.

"Oh? That's amazing. You can resist my will."