The end of science and technology + traveling through the Tang Dynasty + cultivating immortality in the later period
This is an interstellar era in which the earth is invaded by alien civilizations and forced to absorb alien technological advances.
Just when other countries were dreaming of coexisting peacefully with the invaders, China sent pioneers to learn alien technology and urgently launched the Nantianmen Project to arm themselves and defend their homeland.
On the front line, Zhang Chen drove the Luanniao to pull the battle line out of the solar system and fight the enemy to the death. However, when the enemy's reinforcements arrived, all his efforts were in vain. In the thin line between life and death, Zhang Chen, with the determination to face death as if he were home, rammed into the enemy's main ship with all his strength.
Just when the plane was about to crash and everyone was about to die, a black hole suddenly appeared, and the Luanniao was unfortunately sucked into it.
In the end, the Earth Defense Center only received this sentence
"I can no longer return home. Please organize to send pioneers as soon as possible to supplement the front line. We must not let the enemy invade our homeland..."
When Zhang Chen opened his eyes again, he found that he seemed to have traveled through time to the ancient Chinese Tang Dynasty, but time travel was like time travel. How could a battleship as big as mine have passed through at the same time? What's even more tragic is that it seems he can't go back.
