Signed in for a Thousand Years, I Was Dug Out

In the 21st century, Jiang Chen chose the cryonics plan because of brain cancer. He did not expect that he would be frozen for a thousand years. From the moment he was frozen, he was bound to a daily sign-in system and used his remaining consciousness to complete the sign-in. Until it is dug out thousands of years in the future. "Signing in successfully, I get +3 mental strength." "Sign in successfully, mental strength +6." "Sign in successfully, mental strength +10." … This book is also called Signing in for a Thousand Years, I will be invincible in the future! This novel and its characters are purely fictitious. Any similarity is purely coincidental and should not be imitated.