My sister is Luna

"Boom-thump-"

When the bell tolls, it marks the start of curfew.

The ancient and mysterious gate opened once more, and a soft blue light emanated from it. The guardian of Chang'an began its patrol again, and no demon or monster could escape its cleansing.

Having awakened her powers, Shangguan Wan'er's efficiency in completing her work has greatly improved. As a result, she fell asleep before curfew and was free from nightmares. She slept soundly and contentedly. After practicing calligraphy, she drank a glass of milk and slept until dawn, never leaving any fatigue for the next day.

As the bell tolled, Cain, who was sleeping on the floor, opened his eyes. He quietly got up, pulled back the curtain, glanced at Shangguan Wan'er who was fast asleep, and then quietly went out.

"This is the last mission. What will Ming Shiyin do when he sees me tonight? Will he angrily attack me, or pretend he doesn't know anything?" Cain murmured to himself as he looked at the round, bright moon in the sky and walked out of the courtyard.

“This time the location is the clock tower. It’s easy to find this time. I’ll go there early and wait for them.” Cain walked towards the ancient clock tower.

The journey was smooth until we turned at a street corner...

“Uh…” Turning the corner, Cain was stunned. What came into view was a huge body, with hard armor filled with ghostly blue flames.

"Hey, Brother Kui, what a coincidence! Are you here for a walk too?" Cain greeted him with a stiff smile, his lips twitching, and slowly distanced himself from Zhong Kui in front of him.

What kind of luck is this? I've encountered a ghost again!

Cain roared inwardly in frustration.

Oh no, I'm going to be late again. This guy is impossible to kill and keeps bothering me. Why did this mission have to be at midnight? Cain found Zhong Kui extremely troublesome.

"Clean up the trash!" Upon seeing Cain, Zhong Kui's eyes blazed with fury, and he slammed a fist down at Cain.

"That was close." Cain jumped back and dodged it.

"I have something to do today, Brother Zhong Kui, let's fight another day." After saying that, Cain took off running.

"Hmph, stop right there!" A heavy voice followed closely behind Cain.

……

"Haha, Chang'an, I'm back again," the dashing young man said, taking a sip of his wine.

Holding a long sword and with a wine gourd around his waist, this elegant young man, so free and unrestrained, is none other than Li Bai, the sword immortal renowned throughout Chang'an.

"This must be the road Zhong Kui will take," Li Bai thought, gazing out from the rooftop.

"The chaos caused by the demons in the Cloud Desert is related to that mysterious door. The key seems to be on Zhong Kui. I will definitely investigate this thoroughly." Li Bai stared at the door and said solemnly.

"Zhong Kui has appeared."

"Hmm, who is that person?" Li Bai wondered as he saw a white-haired man meet Zhong Kui.

"He ran away, and Zhong Kui chased after him. He was an ordinary... no, with that speed he was definitely not an ordinary person. Was he trying to lead Zhong Kui somewhere?"

"This person seems to be quite something. Let's follow him and see." With that, Li Bai moved like a swallow, leaping nimbly between the houses, closely following behind Zhong Kui.

……

"Hmm, who is that person? How did he lure Zhong Kui away?" Marco Polo, disguised as a beggar and wearing a cloak, asked in confusion.

"Is that the white-haired swordsman who fought Zhong Kui last time? What does he want?" Marco Polo frowned slightly as he recalled the memories in his mind.

"I need to keep up with him. I hope he doesn't disrupt my plans." Marco Polo moved his feet lightly and followed Zhong Kui silently.

……

"Why do you keep bothering me? I have no grudge against you!" Cain looked at Zhong Kui, who was following closely behind him, and felt a sense of despair.

"uh-huh!"

Zhong Kui remained silent, but suddenly clenched his fist and slammed it into the ground. In an instant, the ground cracked, and a huge fissure stretched straight toward Cain.

Cain leaped over the impact, drew his sword, and looked warily at Zhong Kui.

"Seeing that I can only kill you once, I'll run further away," Cain said helplessly.

"Maintain order!" Zhong Kui swung his sickle and hurled it fiercely at Cain.

Cain raised his sword to block, then instantly charged at Zhong Kui, his blade aimed straight for its chest.

"Hmph." Zhong Kui's iron claws gripped the sword blade, and his retracted scythe slashed at Cain.

Cain dodged to the side, kicked it in the chest, and drew his sword, creating distance between himself and Zhong Kui.

"Demons and monsters!" Suddenly, Zhong Kui turned around sharply and roared at the sky.

Just as Cain was filled with doubt, a white figure flashed past Zhong Kui like lightning, sword energy rippled outwards, and a long sword pierced straight into Zhong Kui's chest.

"Hmm...?" Seeing that Zhong Kui was motionless and his body was constantly shifting between light and shadow, the white-clad swordsman sensed something was wrong and immediately distanced himself from it.

"boom--!"

A massive explosion suddenly erupted, the powerful impact creating a gust of wind and a huge wave. Zhong Kui's towering body was instantly shattered into pieces, scattering fragments all over the ground.

"Li Bai?" Cain blurted out when he recognized the familiar face.

"Oh, you know me? You're my fan, right? But let's talk another day, I have things to do today," Li Bai said with a smile, then walked towards the pile of fragments, seemingly searching for something.

"Found it, this is it." Li Bai's face showed joy as he held a glowing cube in his hand.

That's... a key to a mechanism?

Cain thought to himself.

So, the story has begun? Is the fallen god Di Jun finally about to begin his plan to seize the core of the Ark?

Cain stared at the cube, information flashing through his mind.

“Wait…” Cain opened his mouth.

"Sa——"

A fierce sword aura suddenly slashed towards Li Bai, but Li Bai reacted quickly, dodging the attack by the side.

"Who is it!" Li Bai's eyes flashed like lightning as he looked sharply in the direction from which the sword energy emanated and shouted.

"Sword energy, the best signpost." A white-haired, weathered wandering swordsman came into view of Li Bai and Cain.

"Are you Li Bai, the greatest swordsman of the Tang Dynasty?" The white-haired swordsman looked intently at Li Bai, his sword intent surging forth.

"So what if he is?" Li Bai looked at the newcomer with ill intentions and gave him a cold shoulder. There was a troublesome fellow here, but he was not afraid of the white-haired swordsman and released his sword intent to fight.

The two powerful sword intents collided, and for a moment it was difficult to determine the winner. Cain seemed to hear the clanging sound of swords clashing.

“That’s perfect. I am Miyamoto Musashi, and I can’t wait to train myself!”

Having said that, Miyamoto Musashi, his fighting spirit boiling, drew his longsword Raimei and unleashed a fierce sword aura towards Li Bai. He couldn't wait any longer; he wanted to wash away the shame that the demon had brought him through a duel with many masters.

—And Li Bai was the first stepping stone for him to once again reach the invincible peak!

The clanging of swords against each other was incessant.

Li Bai and Miyamoto Musashi fought evenly, with neither side gaining the upper hand.

"You bastard, I don't have time to fight you right now, get lost!"

With an annoyed expression, Li Bai deflected Miyamoto Musashi's attack, then leaped onto the roof and rushed toward the mysterious "door."

He came here not to fight, but to find the truth. Time is of the essence, and if he attracts Sheriff Di Renjie and his men, his chances of getting close to the truth will be slim.

Miyamoto Musashi ignored him and chased after him without hesitation, leaving Cain standing alone in place.

"Miyamoto Musashi is here too. I can't control Yaotian, so I have to follow him. Marco Polo is definitely lying in wait there. I have to catch him. It would be terrible if my arrival changed the outcome."

Cain was jolted awake and quickly caught up with them.

……