Ark, I got cold a little early

My name is Hongyu, I’m from Longmen, and I’m probably a time traveler.
I once thought that I would live a relatively stable life unlike most time travelers.
After all, the continent of Terra... is a bit too peaceful.
The Great Yan family did not lose anyone. The deep sea crisis had long disappeared without a trace, the mineral disease had been conquered, the Syracuse family's rule was gone, and Ursus had completed the revolution...
What can I do? I can only run my own grocery store and go fishing with a koi fish in the river.
Yes, that’s what I thought at first.
Until I received a letter from the back door of my grocery store, and the date of that letter was actually the Dayan period a thousand years ago.
Out of curiosity, I wrote a reply to this strange letter.
The moment it is dropped back into the mailbox.
I traveled back to Dayan a thousand years ago...
Hongyu: Ah?