My sister is Luna

In front of the Protectorate was a vast expanse of corpses and blood, with the mangled bodies of humans and demons mixed together. Under the scorching sun, a strange and disgusting stench of decay filled the air. Thanks to the sacrifice of the soldiers, the Protectorate was spared from falling and stood tall.

The demon horde suddenly rioted and launched a frenzied attack on the Protectorate. Many soldiers died in the battle, but they used their own flesh and blood to protect the Protectorate, which served as the outpost and shoulder of the Great Wall. Behind them, the bright red phoenix banner fluttered in the wind, standing proudly and demonstrating the invincibility and strength of the Great Wall Guards, deterring those who coveted the hidden forces.

A crimson figure darted across the battlefield.

She was a valiant woman, carrying a greatsword on her back and holding short swords in both hands. Her crimson hair was tied in a ponytail, and she wore a tight-fitting outfit with the emblem of the Great Wall Guards. She moved across the battlefield with the agility of a swallow, seemingly unaffected by the stench. Her eyes were as calm as a lake, and her short swords moved lightly, occasionally taking down the surviving demons who were still struggling to survive.

If any veteran who had served more than five years on the Great Wall saw her, they would surely recognize her as the "ghost" lingering outside the Great Wall. Some said she was a traitor to the Great Wall, while others said she was its guardian, trustworthy. But she never explained anything, always going about her business. The veterans vaguely remembered that her name was something like—

Mulan.

"The battlefield here has been cleared. We can move on to the next battlefield to clean up the mess," Mulan said, looking around as she sheathed her short sword and placed it at her waist.

Suddenly, she gripped the short sword at her waist tightly with both hands, her sharp eyes warily scanning the mountain of demon corpses piled up before her. She sensed a living creature within the mass of corpses, struggling and trying to crawl out—perhaps a human, perhaps a demon.

Mulan kept a close watch; if a demon or other monster emerged, she would show no mercy.

The pile of demon corpses in front of Hua Mulan began to churn. A humanoid figure clad in armor staggered out of the corpses, a giant blade gripped tightly in his hand, stained with blood. Just as Hua Mulan thought it was a demon and was about to kill it, he suddenly collapsed.

The eerie, seemingly alive demonic armor shed from his body, revealing a pale face. He frowned, struggling to open his eyes; it was the exhausted Cain.

The number of demons that rioted that day was simply too great. Even though Cain's strength was greatly increased by his demon armor, he couldn't kill them all. The demons surged in like a flood, fearless of death. Moreover, he had to protect the unconscious Baili Xuance. In the end, he had no choice but to use all his strength to throw Baili Xuance off the battlefield. As for whether he would live or die, that was up to fate.

Then, he threw himself wholeheartedly into fighting the demon horde, and he lost his mind in the battle. Although he had demon armor to protect him, he couldn't withstand the sheer number of demons. After killing countless demons, he collapsed from exhaustion. Now, he was only able to push aside the piles of corpses with his stubborn will, and his consciousness was still somewhat hazy.

“It’s a human. He looks like he’s from the Sunset Sea. He’s pretty handsome. Hey, is he still alive?” Mulan crouched down and scanned Cain, then patted his cheek.

"Cough..." Cain exhaled a breath of stale air, his consciousness clearing somewhat.

"Where am I?" Cain asked instinctively, still somewhat confused.

"What did you say? Can you get up? If you don't explain yourself, I'm leaving." With that, Mulan pretended to get up.

"Uh... wait... help me, I'll repay you."

Cain opened his azure eyes. Under the blazing sun was a crimson figure. The resolute gaze looked directly at Cain. The arrogant, bright red hair fluttered in the wind. The iron-blooded temperament forged in the fires of war left a deep impression on Cain.

I feel like I've met someone important... Is it Mulan?

Looking at that handsome face, Cain made a guess in his heart.

"You speak an Eastern language?" Mulan exclaimed in surprise, then looked down at Cain. "Where are you from?"

"Sunset at the Sea".

"So it really is the west. You came from the King's Canyon? Where are you going?"

"Yes, our current destination is Chang'an."

"You're incredibly lucky to have traveled by land." Mulan's eyes lit up. What a talent!

"However, due to the chaos caused by the demons, the Great Wall border is now under strict control, and you probably won't be able to cross it," Mulan said regretfully.

"Oh, what should we do then?" Cain was stunned. He hadn't expected this situation at all. Should he try to smuggle himself out?

"Don't even think about smuggling yourself across. Even if you manage to cross the Great Wall, every town will check strangers. Once you're caught, you'll be thrown into jail and then repatriated. Without an identity, all that trouble isn't worth it... But I have a plan." Mulan smiled broadly.

"what?"

"Join the Great Wall Guards!" Mulan revealed her true colors.

"Joining the Guard gives you an identity."

Why do you want me to join?

“I have a feeling that the Great Wall won’t be peaceful for long. This demonic chaos is just the beginning. I want to form a small team to add as much combat power as possible and reduce casualties. I can sense that you are very strong, and I need someone like you,” Mulan said frankly.

In the previous battle, Cain not only obtained the magic armor, but the collision between his family's power and the golden energy also cleverly created a space in his mind that combined the real and the virtual, effectively suppressing his bloodlust. With time no longer pressing, he became curious about his family's power. His family's power originated from miracles. Milady said that golden energy and miracles had similarities. If he could trigger another miracle from a miracle to create a chain reaction, would there be a way to solve the hidden dangers of blue energy? That would give him another path. Cain decided to investigate miracles along the way.

“Okay, but I can’t stay here for too long, at most a year.” Kai agreed, as having the identity of a Great Wall Guard would make it easier to investigate the Great Wall.

"Great! Welcome to the Great Wall Guards, join my squad. After I finish inspecting the battlefield, I'll take you to the Great Wall to report for duty." Mulan reached out and pulled Cain up.

"Oh, right, I haven't asked your name yet."

"Kay..."

"Armor, right?" Mulan interrupted him swiftly.

“Cain…it’s Cain.”

"Alright, Cain, stick close to me." Mulan sprinted off towards another battle-scarred battlefield.

"Hey, wait a minute, why don't you take care of me, the sick person? And what's your name?" Cain chased after her, but his body had only recovered a little, so he could only hang behind Mulan.

"Mulan".

"I'm a legend on the Great Wall."

"One of the Great Wall Guard's principles is that the Great Wall is not only my Great Wall, but also your Great Wall, the Great Wall of all the Great Wall Guards, and the Great Wall of all of us, Cain," Mulan taught Cain as she ran.

"This Great Wall does indeed seem indestructible." Looking at Mulan's proud and self-satisfied face, Cain couldn't help but feel curious about the Great Wall.

Do the Great Wall defenders have such a strong sense of belonging? Can I also feel the immense allure of the Great Wall...?

At this moment, Mulan stopped. The two had arrived at another battlefield, the same mountain of corpses and sea of ​​blood, the same stench. But what remained unchanged was the phoenix banner that still stood proudly, its blood-red color even more vibrant and beautiful under the blazing sun.

Not far away, several surviving demons were still gnawing on the corpses of their companions. Seemingly attracted by the scent of fresh and delicious flesh, they stopped what they were doing and frantically pounced on Cain and Mulan.

"Now let's see your strength, Cain." Mulan drew her greatsword from her back and instantly sliced ​​the demon that lunged at her in two.

"Alright, watch me! Armor Combination!"

Cain took a step forward, summoned his demonic armor with a thought, and wielded his giant blade. A single sword aura annihilated the remaining demonic creatures. He completely forgot that he hadn't eaten since he emerged from the black mist, and his strength was completely exhausted. He then fainted, and the demonic armor dissipated from his body. After all, he was still human, and his strength hadn't surpassed that of a king.

"What happened? He fainted in one move?" Hua Mulan asked in surprise.

"Gurgle—" A sound came from Cain's abdomen.

Mulan chuckled:

"Haha, you're actually hungry? You're really funny."

Mulan squatted down and looked closely at Cain's sleeping face. Curious, she poked his cheek and said, "He looks quite handsome when he's asleep, and his cheek is so soft and bouncy..."

……