The End of the World: I Build a Fortress in Cold Lake

Gu Yu, who had survived for three years in the apocalypse, was swept away by the flood due to the betrayal of "Green Tea" Chen Yueru. Although he was lucky enough to hold on to a dead tree for two days, he was hit by a huge tsunami and was buried underwater... … Astronomy enthusiast Gu Yu discovered a difference in the light of the star HIP54751 in Carina at his home in Jinling in April 2023. In the following days, he discovered a new star hidden behind the HIP54751 star, which he called the "anchor star". Just as Gu Yu was sitting on the train going back to Lenghu, Gu Yu was reborn nine years before the end of the world and was conscious but unable to control his body, so he lived in his body like watching a play, waiting for the opportunity...