The northern frontier is plugged, and the wind is cold, the grass and trees are dry.

The sky is dark, and the earth is dark, and when you open your eyes, you feel that the world is spinning. The border of northern Xinjiang is "Tianjiao" - a towering blue-tiled city wall, with no roof visible from the bottom to the top.

There is an old saying in northern Xinjiang: "Outside the sky, corpses are everywhere." "But it's really not a fabrication, the corpses outside the city walls have long been blurred with flesh and blood, most of them are only bits and pieces, and the blood is black blood, which flows together into a river of blood.

There is no day and night in the side plug, some are just muddy and vain, the cold wind swept the heavy dust and sand, and it has long been impossible to distinguish which is the sky and the earth, and when it is tonight.

"The moon bends, the sky shines, the boat bends, the blue waves ......"

In the dimness, the empty and melodious female voice reverberated faintly.

Mu Zixin was dressed in a gray military uniform, lying on his back on a dead tree, his eyes closed, and a rusty spear lying on his body. Her right arm rests behind her head, her left hand gently caress the red tassel of the spearhead, her feet are crossed on the high branches, and her mouth is humming softly.

"Don't sing, I want to sleep a little longer!" said Ling Xiang impatiently as he lay on another dead tree.

"I don't want to hear that you can sleep on another tree," Mu Zixin turned his head and glanced at him, "You didn't plant this tree." ”

Ling Xiang turned around, too lazy to talk to her anymore. He lowered his head and hooked a bloodstained cloth bag with the silver scimitar in his hand, shook it with both hands, stretched out his head to look inside, the only remaining rice crackers in the cloth bag were almost shattered, he reached out and fished out a piece and filled it into his mouth.

"The food is running out, why haven't you opened the door yet?" he muttered as he chewed the hard stone-like cake, "Zixin, do you have a strange feeling?"

"What?"

"It seems like we've been guarding the border for 10 days this time. ”

"I don't know, I'm not a janitor. After Mu Zixin finished speaking, she continued to hum her song.

Suddenly, she stopped, opened her eyes slightly, and a pair of dark eyes suddenly revealed a chilling murderous aura. At the same time, Ling Xiang also threw down the bag in his hand, he suddenly got up and half-knelt on a thick tree trunk, grabbed the rustling branch beside him with his hand, and his attention began to be highly concentrated, and he pricked up his ears as if he would not let go of any sound. His right arm was wrapped in a silver chain, and the silver scimitar at the tip of the chain glowed with a terrifying chill.

The wind suddenly became so fierce that several dead trees were blown off and nearly broken, and a moment later they heard a terrifying hiss from the depths of the darkness, like a heart-rending scream, but mixed with a low roar.

"Be careful, here you go again. Ling Xiang raised his right arm as he spoke, and the scimitar in his hand spied on the prey in the distance like a hungry viper.

"Be careful of your own life!" Mu Zixin said, jumping off the dead tree and disappearing into the thick black smoke.

The wind whistled from the sky with sand and dust, and the heavens and the earth suddenly fell into bottomless darkness......

Two blood-bright red lights flashed, and the two of them penetrated into the burning army almost at the same time, Mu Zixin clearly felt that the number of burning troops coming this time was twice as large as last time, she couldn't help but feel shocked, but she didn't have time to care about the reason.

Ling Xiang followed closely, he shook off the silver blade chain, and in an instant, several snake shadows poured out of silver light, accompanied by the terrible wail of the burning army, and the remaining black shadows splattered out a large area of blood-drenched flying dust, and the black blood threads mixed with these flying dust were highly poisonous, sharp as a blade, dense as a drizzle, and swirled into a huge blade vortex with the storm.

There were roaring loud noises around her one after another, Mu Zixin felt that her vision was becoming more and more blurred, her physical strength began to decline rapidly, and the antidote that had been smeared in advance on her body began to gradually fail.

She was thinking about how to retreat, and suddenly remembered Ling Xiang, she hadn't seen the shadow of that guy for a while, his skill was lower than her, and now she was so embarrassed, I don't know if he can survive it......

The more she thought about it, the more worried she became. But the most taboo distraction on the battlefield, suddenly, a huge black shadow appeared in the chaos, coming straight towards her, Mu Zixin saw that she couldn't dodge and had to defend on the spot, but this stop was fatal, and the rain of arrows pierced her skin, and the venom soaked into her body.

Although she has a lot of internal strength, this little venom can't help her, but the pinprick pain causes her to be unstable. She felt an evil aura approaching behind her, and was about to turn around to find herself surrounded on all sides, and a pair of ghostly hands reached out in the darkness and grabbed her throat.

Looking at the fierce ghost that gradually revealed its original form from the storm, two words flashed in her mind: It's over!

As the highest-ranking officer in the entire northern frontier, she knew best in her heart that once she was caught by the burning army, she would definitely die! The powerful ghost waved his hand and set off a huge sandstorm that shook the earth, and instantly turned into a sharp axe in his hand, and slashed towards Mu Zixin.

"It's finally over......" she thought to herself.

Ten years ago, she committed a serious crime and was exiled here, wearing a military uniform and a spear, and fighting with the burning army for ten years, but the burning army could not be killed and driven away, and her heart was already full of holes and exhaustion.

After guarding the border for ten years, the debts have long been paid off, and now I can finally leave calmly. She gently closed her eyes and slowly opened her arms, waiting for the final judgment of fate......

"Mu Zixin!"

Hearing Ling Xiang's shout, she suddenly opened her eyes, only to find herself lying on the ground, and the burning army around her suddenly disappeared.

For a moment, she suspected that she was dead, and she had become a ghost. But when he turned around, he saw Ling Xiang sitting on the ground, panting heavily, and a mouthful of blood choked out of his mouth.

"No......" He wiped the blood stains around his mouth, supported the ground with one hand, and supported his chest with the other, looking at the remnants of the burning army in the distance, he became more and more confused, "Just ...... Obviously, we are almost invincible, why did we suddenly retreat......"

At this time, there was a loud bang behind them, and the two turned around at the same time, and the sky was separated.