My Xiuxian painting style is not right

"The system upgrade is complete! What has been upgraded?" Chen Yu rubbed his hands, feeling very happy, and couldn't wait to check the new skills and props.

But now that the Demon Sword is so close, it is more important to get down to business first.

"This system is quite reliable at critical moments." Chen Yu praised silently in his heart, and his gaze fell back on the magic sword emitting golden light.

The light emitted by the sword illuminated the entire cave, even dimming the light of the gems on the cave wall.

"This thing looks so domineering." Liu Rumei stepped forward, staring at the Demon Sword with shining eyes.

She reached out to touch it, but was a little scared. "This sword looks powerful. Will it suddenly fly out and chop people?"

"I don't think so." Princess Su Yue shook her head slightly, but her eyes never left the Demon Sword.

Although she didn't talk much, her eyes were full of curiosity and anticipation.

Zi Yan's mother walked to the altar with a solemn expression. "Zi Yan, go and try to see if you can pull out the Demon Sword."

Zi Yan nodded, took a deep breath, and walked to the altar. She stretched out her hands and grasped the hilt of the sword.

The hilt of the sword felt cold to the touch, and a powerful force spread through her arm and throughout her body.

Zi Yan pulled hard, but it didn't move at all.

"What's going on?" Liu Rumei's eyes widened. "I can't pull out this sword?"

Zi Yan tried several more times, but still couldn't pull it out. Fine beads of sweat oozed out of her forehead, and her face turned pale.

"It seems that this Demon Sword is not so easy to pull out."

Chen Yu stroked his chin and spoke thoughtfully. He walked to the altar and carefully observed the Demon Sword and the altar.

The altar is made of black rocks with some complex runes carved on the surface, emitting a faint demonic aura.

Chen Yu touched the rune with his hand, which was cold to the touch. A strange energy flowed into his body through his fingertips.

"These runes seem to be a kind of seal." Chen Yu thought to himself.

"Zi Yan, try using your blood." Zi Yan's mother suddenly said.

Zi Yan was stunned for a moment, then nodded. She bit her finger and let the blood drip onto the hilt of the sword.

Blood flowed down the hilt and merged into the rune. The rune suddenly lit up, emitting a dazzling light.

The entire cave shook as if it was about to collapse.

Chen Yu hurriedly pulled Liu Rumei, Princess Su Yue and Zi Yan's mother back a few steps.

The light dissipated, the vibrations ceased, and the Demon Sword emitted a crisp sound, its blade trembling violently.

Zi Yan grasped the hilt of the sword again and pulled it hard.

This time, the Demon Sword was pulled out easily.

A powerful demonic energy gushed out from the Demon Sword, sweeping across the entire cave.

Zi Yan's body was wrapped in demonic energy and suspended in the air.

Zi Yan's hair moved without wind and her clothes fluttered, just like a fairy from the ninth heaven descending to earth.

"It's done!" Zi Yan's mother shouted excitedly.

Chen Yu also breathed a sigh of relief, and his heart was filled with joy as he looked at Zi Yan who was surrounded by demonic energy.

At this moment, an old voice suddenly rang out in the cave: "Congratulations, you have become the new Demon Lord."

Chen Yu and others looked in the direction of the sound and saw an old man in a black robe appear in the cave at some point.

The old man was tall and thin, with a long white beard and a black cane in his hand. He looked like an immortal.

"Who are you?" Chen Yu asked vigilantly.

"I am the guardian of the Demon God's Tomb." The old man said slowly, "I have been guarding here for thousands of years."

"Guardian?" Chen Yu was stunned. "Then do you know the origin of the Demon Sword?"

"The Demon Sword is an ancient artifact, possessing the power to destroy heaven and earth."

The old man stroked his beard and said slowly, "Legend has it that the Demon God Sword was forged from the blood and essence of an ancient Demon God, and it contains the power of the Demon God.

Only those with pure demon blood can wield the Demon Sword."

"I see." Chen Yu nodded and asked, "Then do you know the secret of the Demon God's Tomb?"

"The Demon God's Tomb is the mausoleum of the ancient Demon God. Buried within it are the corpse of the ancient Demon God and countless treasures."

The old man said, "However, the Demon God's Tomb is also full of dangers. If you are not careful, you will lose your life here."

"Thank you for your guidance, senior." Chen Yu said with a bow.

"You're welcome." The old man waved his hand, "I have been guarding here for thousands of years, and finally I have waited for the new Demon Lord.

Now, my mission is accomplished, and it is time for me to leave."

After the old man finished speaking, his body gradually became transparent and finally disappeared.

"He, why is he gone?" Liu Rumei widened her eyes in surprise.

"He was the guardian of the Demon God's Tomb. He completed his mission and disappeared naturally."

Chen Yu explained.

"Oh." Liu Rumei nodded, not quite understanding.

"Zi Yan, how do you feel now?" Zi Yan's mother asked with concern.

"I feel full of power." Zi Yan said excitedly, holding the Demon Sword and feeling the surging demonic energy in her body, "I feel like I can control everything!"

"Congratulations, Zi Yan, you finally became the Demon Lord." Zi Yan's mother said with relief.

"I have to thank Chen Yu for all this." Zi Yan looked at Chen Yu and said gratefully, "If it weren't for him, I would have died long ago."

"It's my duty." Chen Yu smiled, "We are friends after all."

"Yeah." Zi Yan nodded, her eyes slightly moist.

"Since Zi Yan has become the Demon Lord, it's time for us to leave here."

Chen Yu said, "The Demon Realm is in chaos now. Zi Yan needs to go back as soon as possible to stabilize the situation."

"Okay." Zi Yan nodded, "Let's go back now."

They left the cave and returned to the underground river. Chen Yu gathered up the kayak and put it in a cloth bag.

"How do we get back?" Liu Rumei asked, "It's still a long way from here to the Demon Realm."

"Don't forget, I have this." Chen Yu said, taking out a folding bicycle from the cloth bag.

"Bicycle?" Liu Rumei looked puzzled. "Can this thing be ridden?"

"Of course." Chen Yu said, unfolded the bicycle and rode it skillfully.

"Come up." Chen Yu said to Zi Yan.

Zi Yan hesitated for a moment, but still sat in the back seat of Chen Yu's car.

"Hold me tight." Chen Yu said.

Zi Yan gently hugged Chen Yu's waist.

Chen Yu rode his bicycle with Zi Yan on his back, following the path along the underground riverbank towards the Demon Realm.

Princess Su Yue, Zi Yan's mother, and Liu Rumei followed behind, chatting and laughing all the way.

"Chen Yu, ride slower, I can't keep up." Liu Rumei shouted breathlessly.

"Then come up, I'll give you a ride." Chen Yu said with a smile.

"Really?" Liu Rumei's eyes lit up.

"Of course it's true." Chen Yu nodded.

Liu Rumei hurried forward and sat in front of Chen Yu.

"Hold me tight." Chen Yu said.

Liu Rumei blushed and hugged Chen Yu's neck.

Chen Yu rode his bicycle, carrying Liu Rumei and Zi Yan, and continued along the path.

Princess Su Yue and Zi Yan's mother followed behind, and looking at the intimacy between Chen Yu, Liu Rumei and Zi Yan, she showed an aunt-like smile on her face.

While riding, Chen Yu suddenly felt a powerful demonic aura in front of him.

"Be careful!" Chen Yu braked quickly.

"What's wrong?" Liu Rumei asked.

"There is an ambush ahead." Chen Yu said in a deep voice.

"Ambush?" Liu Rumei and Zi Yan's expressions changed.

"Who are you? You're sneaking around. Come out!" Chen Yu shouted.

As soon as he finished speaking, a group of demon soldiers rushed out from the woods and surrounded Chen Yu and others.

These demon soldiers were dressed in black armor, holding spears, and each of them looked ferocious.

"Who are you?" Chen Yu asked coldly.

"We are here to capture you on orders." said a demon soldier.

"On whose orders?" Chen Yu asked.

"Following the orders of the Second Prince, the younger brother of the current Demon Lord, Blood Demon!"

The demon soldier replied.