"What else do they want? My brother Xiaohu is also dead, killed by them!" Yu Kai roared at the top of his lungs. His eyes were red and swollen, tears were streaming, and his body was shaking with extreme grief and anger.

"They will definitely have more powerful masters coming, we must leave immediately!" Murong Shuang looked at Yu Kai anxiously and said softly, with a hint of urgency in her voice that was hard to conceal.

"If they dare to come, I will kill them, kill them all!" Yu Kai roared stubbornly, with a strong murderous intent all over his body. The murderous intent seemed to condense into substance, like cold frost and snow, making the surrounding air become bitterly cold, as if to freeze everything.

"If Yang Jian and Deng Jiugong take action personally, you will be easily killed by them. The power of your world cannot suppress them at all. You still have a sister, aren't you going to find her?" Murong Shuang looked at Yu Kai with a firm gaze. Although her voice was soft, every word was like a heavy hammer, trying to wake up Yu Kai who was blinded by hatred.

"Sister, how is my sister now? Is she okay?" Yu Kai immediately turned around, grabbed Murong Shuang's hand, and asked anxiously, his eyes full of worry and anxiety, as if his sister was his only life-saving straw at the moment.

"I'm not sure how she is doing now. But I can take you to find her!" Murong Shuang frowned slightly, pulled her hand back, and said softly.

"Okay, I'll bury Brother Xiaohu, and then I'll go with you!" Yu Kai wiped away his tears, his eyes revealing a hint of determination. He picked up Wu Xiaohu's body and his body moved like lightning, instantly transforming into a stream of light and rushing towards the ground.

He found a secret spot near the core of the star to bury Wu Xiaohu and personally erected a tombstone for him. Yu Kai kowtowed heavily in front of the tomb, his forehead bleeding. He said with a choked voice, "Brother Xiaohu, I'm leaving. I'm going to find Niuniu. Don't worry, I've avenged you. I killed Yang Yifei and Tu Yulang. This place is very secluded, and ordinary people can't get in. Rest in peace. I'll come back to see you when I have time!"

After saying this, Yu Kai stood up and gazed at the tombstone for a long time, his eyes filled with reluctance and longing, as if he wanted to deeply engrave this final image in his heart. Finally, he gritted his teeth, turned around and left resolutely, his eyes filled with determination and hope for the future.

Meanwhile, the prehistoric immortal world was in turmoil over Yu Kai. First, the previously peaceful Underworld hurriedly reported to the Heavenly Court that the demons from the planet Asia had suddenly appeared on Earth for unknown reasons, and that Yu Kai, a member of Earth's own planet, had brazenly disrupted order in the Underworld and caused a commotion there, requesting the Heavenly Court to arrest him. This news, like a huge rock dropped into a calm lake, instantly caused a commotion in the Heavenly Court.

Then, Wen Chengzhi led 11 young and talented generals, commanding 120,000 celestial troops, on a mighty expedition. However, news soon arrived: the vanguard generals had been captured one after another in the clashes, resulting in devastating losses. Then, the devastating news of the entire army's annihilation arrived. Wen Chengzhi was first captured, then poisoned and critically ill. Wen Qiluo, Li Yifeng, Li Mengli, Tian Xiaopeng, and Su Yao were critically injured, and Yin Ziling was critically ill, hanging by a thread. This series of news instantly enraged the Celestial Court and shook the prehistoric celestial realm. Everyone wondered who Yu Kai was, how he had emerged from an obscure and destitute planet and could defeat so many talented people.

Many people even wondered if these so-called third-generation immortals were merely seeking fame and reputation, their strength merely exaggerated by the massive forces behind them. For a time, voices of contempt for them arose everywhere, and they became the butt of everyone's jokes.

Immediately afterwards, an even more earth-shattering piece of news was reported back to the prehistoric world. The Heavenly Eye General Yang Yifei, the Taiwei Immortal Lord Jun Yao, the Star-Shining Goddess Xing Lan, and their followers, and the army they led suffered a crushing defeat on Venus. Except for the Bingling God Lord Huang Tianrui who escaped by chance, all the other generals were killed in the battle.

If the people of the prehistoric world thought Wen Chengzhi and his men were just seeking fame, then Yang Yifei, Jun Yao, and Xing Lan were truly top-tier masters, renowned throughout the prehistoric world, with countless legendary achievements and fame. Their defeat plunged the entire prehistoric world into unbelievable shock.

Then, news spread that Yang Yifei's eldest brother, Yang Yichen, had indignantly petitioned the Heavenly Court to fight Yu Kai once again, claiming that the younger generation should resolve their own affairs and that he would avenge his brother and restore the prestige of the Heavenly Court. Yang Yichen's eyes blazed with fire, as if he wanted to devour Yu Kai alive.

Li Jing, the Pagoda-Bearing Heavenly King, also urged Yang Yichen to organize a large army among the younger generation of the prehistoric world, training a strong and valiant army for their generation to fully prepare for future campaigns against the evil. His words were sincere and his gaze was firm, revealing the responsibility and strategy of a senior official of the Heavenly Court.

Ultimately, the Jade Emperor granted his approval, appointing Yang Yichen, a mid-stage Saint Emperor, as Grand Marshal of the Yu Campaign, and Li Lingxiao, also mid-stage Saint Emperor, as Deputy Marshal. Li Lingxiao, Li Jing's eldest granddaughter and titled the Flame Warrior, possessed immense strength and a renowned reputation. Her figure was graceful yet heroic, and her every smile exuded a fierce aura. Li Zhongxiang, grandson of Taibai Jinxing and known as the Star Sage, was appointed Military Advisor. Together, the three of them prepared their forces for an expedited march.

This time, Yu Kai had completely humiliated the high-ranking officials of the Heavenly Court. To avenge this humiliation, each party sent their powerful young men to report. In a short period of time, talented people from all sides gathered and quickly formed an army.

The army was quickly ready. Yang Yichen led Li Lingxiao and Li Zhongxiang, along with Jin Zha's son, Demon-Suppressing General Li Rui; Lei Yao Fairy Lei Ling'er, a descendant of the Goddess of Thunder and Lightning; the Lightning Emissary Shan Xing; Tian Ling Fairy Tian Xiaohe, a descendant of Tu Xingsun; Ao Xinli, the Granddaughter of the East China Sea Dragon King; and Zhong Lingyu, the Evil-Suppressing Heavenly Maiden. To counteract Yu Kai's poison, they also included the Immortal Medicine Envoy Li Miaotong and the Pure Yang Sword Immortal Lü Jianlin, totaling eighteen Saint Emperors. Although these individuals were third-generation immortals, some with hundreds of years of cultivation experience, their strength was comparable to that of second-generation immortals, each possessing unique skills and extraordinary strength.

The Celestial High Command also provided them with numerous powerful magical weapons. Yang Yichen wielded the "Spirit-Suppressing Pagoda," a gift from Heaven. This pagoda absorbs the spirits of all living things and suppresses the enemy's spiritual energy. A shimmering aura emanated from the pagoda, seemingly imbued with boundless mystical power. Li Lingxiao was equipped with the "Flame Ribbon," a ribbon that, with a single wave, unleashes a blazing flame, incinerating everything. The ribbon danced like a flaming dragon, a terrifying sight. Li Zhongxiang received the "Star Compass," which allowed him to discern battlefield situations and predict enemy movements. The compass itself shone with stars, creating a mysterious and unpredictable scene.

In addition to the magical weapons, the Heavenly Court also dispatched several experienced young immortal officials as advisors to provide strategic counsel for the army. These immortal officials were well-versed in various tactics and could formulate countermeasures based on the ever-changing battlefield situation. With their sharp vision and agile minds, they were the intellectual core of the army.

Furthermore, the Heavenly Court equipped the army with specially crafted elixirs that not only rapidly restored spiritual energy and healed injuries but also enhanced their power. These elixirs exuded a unique fragrance and shimmered with light, making them unmistakably exceptional. Furthermore, to ensure the army's adequate supplies, the Heavenly Court mobilized a vast amount of resources, including rare spiritual materials and powerful weaponry. The radiant light of these spiritual materials and the impenetrable sharpness of their weapons gave the army an even greater advantage.

The Heavenly Court also had the Celestial Masters at the Celestial Masters' Mansion draw powerful defensive and offensive spells for each soldier. These spells could play an unexpected role at critical moments, shimmering with mysterious light and imbued with powerful force.