Chapter Summaries

Si Chen learned that Taichu had created Filth while trying to keep him alive, and that Li Tiezhu had been made to absorb it. Rejecting Taichu’s plan to sacrifice Li Tiezhu as something that never truly existed, Si Chen flew toward the Origin Sun and let his mortal body dissolve into golden light.

• Si Chen recalled that Taichu had severed his origin source to revive him, and questioned whether his memories of five billion years were false.
• Taichu revealed that he had created Li Tiezhu in the River of Time and made him able to absorb Filth, calling him an expendable creation.
• Si Chen argued that Li Tiezhu had become real when he called Si Chen Master, then flew toward the Origin Sun.
• Taichu tried to stop Si Chen, but Si Chen stripped away his defenses and severed Taichu’s power from his body as he walked forward.
• Si Chen thanked Taichu for bearing the darkness and for giving him centuries of mortal life, then his body dissolved into golden light.

Si Chen awakened as the Origin Sun and confronted Taichu, then showed him Li Tiezhu and the friends frozen around him. As Li Tiezhu’s life dwindled, the system sacrificed itself to give him a final mission: stay alive and gain freedom.

• Si Chen fully awakened as the Sun, remembered his shared past with Taichu, and told him he had learned that the Sun must set so the stars could shine.
• Taichu rejected Si Chen’s reasoning, so Si Chen brought him back to the frozen scene in the Forgotten River.
• Si Chen pointed out Li Tiezhu, whose body had turned into black crystal, as one of the stars Taichu had dismissed.
• The system comforted Li Tiezhu and admitted that traveling with him had been fun.
• The system used its light to wrap Li Tiezhu’s true spirit and issued its final mission: stay alive, with freedom as the reward.

Li Tiezhu survived as a fragile wisp of spirit after the system sacrificed itself, and Si Chen cleansed the black crystal and sent it into reincarnation with Heaven Mender’s lingering consciousness. Si Chen opened a sixth path named Asura, while Taichu’s growing obsession revived the Filth and drove him to declare that he would keep Si Chen alive at any cost.

• The system vanished after preserving Li Tiezhu’s weakened true spirit, and its failure let the Filth spread again.
• Si Chen explained to Taichu how shared experiences and feelings had made the system a living being, then burned the Filth from the black crystal.
• Si Chen promised the crystal he would teach it when they met again and created the sixth path of reincarnation, the Asura path.
• Si Chen reversed time to retrieve Heaven Mender’s lingering consciousness, joined it to the crystal, and sent them together into reincarnation.
• The Filth rapidly regenerated across the Void, and Taichu admitted his obsession had deepened and vowed to find new vessels and damage the worlds if necessary to keep Si Chen alive.

As his existence faded, Si Chen used the Fusang Divine Tree and the River Chart World to move the worlds and their inhabitants out of the wounded Taichu World. He left the Immortal Realm behind, sent the new world away, and told Taichu that he acted because he was the sun.

• Si Chen summoned the Fusang Divine Tree and revealed the River Chart World to Taichu.
• Si Chen began transferring the worlds and their inhabitants into the River Chart World, despite Taichu pleading with him to stop.
• As the transfer weakened him, Si Chen looked over the people in the Immortal Realm and those already inside the new world.
• Si Chen apologized for breaking his promise to walk together with everyone, then sent the River Chart World beyond the Taichu World.
• Taichu demanded to know why Si Chen made his choice, and Si Chen answered, "Because I am the sun."

As Si Chen neared the end of his life, he walked with Taichu through memories of the people and places they had known. He returned to the Si Household Ancestral Residence, said goodbye to Taichu, and disappeared from the rocking chair.

• Taichu raged at Si Chen over the new world, but calmed down and agreed to walk with him.
• Si Chen and Taichu passed through afterimages of Undying Mountain, Purple Firmament Heaven, Jade Qiong Heaven, Myriad Streams Heaven, and Mining Star, recalling people and events from the past.
• In the Ascension Passage, Si Chen asked Taichu whether he had caused the passage to collapse during their first ascent, and Taichu turned away without answering.
• They visited afterimages of Ye Fu protecting a young boy in the Great Yin Imperial Capital and of Si Chen's companions meeting in Mistveil Valley and Alchemy Cauldron City.
• At the Si Household Ancestral Residence, Si Chen became a seven-year-old boy, told Taichu he was sorry for leaving him alone, and settled into the rocking chair.
• Si Chen closed his eyes as the chair swayed, and then it was empty.

Taichu preserved the courtyard after Si Chen vanished, then destroyed the rest of the universe. Xie Changsheng and the others awoke in a restored, unified universe and searched everywhere for Si Chen, but returned to Undying Mountain without finding him.

• Taichu stabilized the Si Household courtyard and annihilated every other star river, ruin, and plane in the universe.
• Xie Changsheng, Zhou Yan, Song Chi, and the others awoke in the River Chart World, unable to find Li Tiezhu or Si Chen.
• Xie Changsheng glimpsed images of Si Chen’s final sacrifice and flew upward with the others to investigate.
• The group discovered that the Eastern Region, Purple Firmament Heaven, and the Demon Realm had merged into a single universe.
• Xie Changsheng and the others searched the new universe for Si Chen, but found only his family waiting at Undying Mountain.
• Xie Changsheng opened the rear courtyard gate and found the Old Locust Tree and tea set in place, but Si Chen’s rocking chair was empty.

After the Great Calamity, the survivors left Undying Mountain and the world moved on, while Si Shuo and Gray Gray waited for the vanished master. Ten thousand years later, Gray Gray remembered the seed the master had planted inside a sun and tried to summon Little Lei, then released his suppressed cultivation when no one answered.

• Song Chi, Luo Hongyi, Zhou Yan, Murong Li, Black Mountain, Red Wind, Zhu Yao, Feng Qing, and Xie Changsheng each left Undying Mountain and went their separate ways.
• Si Shuo stayed on Undying Mountain, began cultivating again, and cleaned the master's rocking chair each morning.
• Gray Gray refused to transform or cultivate, choosing to wait at Undying Mountain for his master to return.
• Ten thousand years later, Gray Gray remembered that his master had planted a seed inside a sun and that Little Lei had been there.
• Gray Gray brayed for Little Lei, but when neither the Heavenly Dao nor the Thunder Dragon responded, he released ten thousand years of suppressed power and broke through to the Mid True Immortal Stage.

Gray Gray revealed that someone had left behind a seed, prompting Little Lei to gather the long-separated immortals and powers who had been searching for him. Xie Changsheng learned the news in the River of Time and joined the group, ready to follow Gray Gray's lead.

• Gray Gray completed his True Immortal Tribulation and told Little Lei that something momentous had happened, so Little Lei carried him to find Song Chi.
• Gray Gray shared the sealed memory with Song Chi, who immediately abandoned his seclusion and joined them.
• Song Chi and Gray Gray found Zhou Yan and Murong Li, who learned the news and set off for the Underworld.
• Luo Hongyi received Gray Gray's memory and quit her post, then joined the group as they gathered Black Mountain and the others at the Mountain of Ten Thousand Silences and Ten Thousand Radiance Hall.
• The group reached Xie Changsheng in the River of Time, where Zhou Yan explained that someone had left behind a seed, and Xie Changsheng grabbed his sword and told them to lead the way.

After searching for more than a thousand years, Gray Gray led the group to a star containing a trace of Si Chen’s aura but no soul or consciousness. Xie Changsheng proposed following the star into the future to find the seed’s eventual awakening, and the group prepared to accelerate its time by hundreds of millions of years.

• Gray Gray sensed something deep in the Void and led everyone to a faintly glowing star.
• Song Chi, Xie Changsheng, and Zhou Yan confirmed the star was the one from before, but found no true spirit, consciousness, or awareness within it.
• Black Mountain rejected Zhou Yan’s conclusion, while Luo Hongyi confirmed there was no soul inside the star.
• Xie Changsheng reasoned that the star’s seed could awaken in the future and proposed searching for Si Chen there.
• Xie Changsheng opened the River of Time as Zhou Yan and A-Li anchored the star, Hongyi protected the seed, and the others poured their power into him to accelerate time.

After five billion years of detached existence as the sun, Si Chen felt something awaken when a group of companions found him and called him Brother Si. He remembered his name as Si Chen and answered their reunion with a gentle solar wind.

• Si Chen reflected on his endless life as the sun and his growing indifference to the cycles of life on the azure planet.
• Si Chen noticed a black-haired youth and his exhausted companions gazing at him, and recognized that the youth could see his origin source.
• The black-haired youth called him “Brother Si,” while his companions showed joy and grief at finding him.
• Si Chen felt something within his origin source stir and chose to remain awake, curious about the lives and bonds of his companions.
• Si Chen sent a gentle solar wind across the mountaintop and remembered his name as Si Chen.