The Dream of Time Travel Is Back

A serious illness caused her to burp. What she didn't expect was that time travel existed in this world. I thought that the new students could live a plain and happy life, but there were also conspiracies and intrigues. What people never expected was that this was a world where humans and demons coexisted. So many people have made sacrifices for themselves, but they can't get anything back for themselves. The person who had been banned for a thousand years and had been waiting for him for a thousand years was forgotten by him...