I Was Reincarnated by My Girlfriend and Summoned to a Hundred Years in the Future

The sky is burning, stars are setting in the sun, spiritual powers are reviving, demonic realms are appearing, monsters are everywhere, and people are struggling to survive. Yu Heng chose to cut off and involved part of the monster army. During the fierce battle, he was involved in space turbulence and was never heard from again. Later, the beheading operation against the Demon King team was successful, and the Human Alliance finally survived the most difficult period. One hundred years later, monsters began to move around again, and the story began in Li City, a small town in the middle of the alliance. (A new author, the introduction is weak, please support me.)