# Introduction to the novel "The Romance of Troubled Times: Returning to the Heart of the Three Realms"
The ancient Hongmeng was first opened, and the three tribes of humans, gods, and demons stood in harmony. Emperor Yan abused and burned the world to stop the fire. The three sages Zuo Ci, Nan Hua, and Yu Ji developed the "immortality technique" to seal it, but it attracted the greed of the demons and started a century-old war. After the war, the three clans ceased fighting, and the three sages hid in the world and accepted their disciples as "immortals" to guard the seal of Emperor Yan and protect the peace of the three realms.
At the end of the Han Dynasty, when Han Zuo was in decline, Zhang Jiao, a disciple of Nanhua, launched a Yellow Turban uprising in an attempt to save the people from the fire and water. However, the demons took advantage of the chaos to kill Zhang Jiao and seize the Central Plains. Cao Cao took advantage of the demons to become the dark overlord. The humans were defeated miserably in the Battle of Guandu, and the allied forces of humans and gods finally defeated the demon army in the Battle of Chibi. From then on, the humans entered Shu, the gods took control of Jiangdong, and the demons took control of the northern border, and the Three Kingdoms were established.
Nanhua saw that the troubled times were difficult to calm down, so he insisted on summoning Emperor Yan, which actually caused time and space to reverse - Zhang Jiao, Dong Zhuo, Lu Bu and other heroes of the past returned with Emperor Yan, and the world was in danger. The three sages repented and created the "Substitute Immortal Technique", which allowed the immortals to control the heroes in the world to fight the crisis together. Finally, they were named Emperor of Fire and established a three-realm alliance to embrace other worlds and establish a peaceful order. From then on, humans, gods, demons, and other worlds coexisted and prospered together. The troubled times eventually became legends, and peace continued to spread forever.
