He Just Became the Immortal Emperor and Was Selected into the Battlefield of the Heavens?

Qin Changsheng traveled through the fantasy world, cultivated to the realm of the Immortal Emperor in just a million years, and was revered as the greatest emperor in the world. However, just when Qin Changsheng wanted to go one step further and reach the legendary realm of transcendence, he accidentally opened a teleportation door to the earth. Alien invasion? All major civilizations in the world have fallen one after another, and the Eagle and Dog Kingdom has become a foreign invasion? Is China the only one who defends the Eastern Front? "You can call me the Immortal Emperor of Immortality, or... The Patron Saint of China!" The world was shocked when Qin Changsheng arrived! … "As the Immortal Emperor, I will defeat all enemies in the world!" In the heavens, he alone fights against the great emperors of all races! At the end of time, he will cover the battlefields of all realms with one hand! The moment he stepped into the chaos, the sky cried out blood, and the gods and demons could be destroyed! This novel and its characters are purely fictitious. Any similarity is purely coincidental and should not be imitated.