I've Come Back After Being Reborn

The protagonist is reborn from the end of the future and returns to the present, and builds his own invincible fortress in order to prevent problems before they happen.However, after waiting for three months, the end still hasn't come, and the world is peaceful.At this moment, the fortress ushered in a familiar guest, claiming that he had just saved the world. "To tell you the truth, I like your fortress very much. It helps my PTSD to heal. How much is the rent?" "What PTSD?" The end is coming." "I believe it." Shou: I am reborn and back!I'm ready for the end!Gong: I am reborn!I managed to prevent the end from coming!by:?attack:? cp: The hero who prevents the doomsday after time travel x is reborn as an ordinary person before the doomsday [It’s just a free short story to write wherever you want, superficial, very short, boring and practice writing to vent, and it’s over when you’re cool~]