Note: Takes place after Pacifist ending in Undertale

Prologue

Only months ago, a friend of ours helped us to reach the Surface at long last. The sun was beautiful. We've never been so happy. What more could we hope for in this world where we thought happy endings were nonexistent? It was as if our prayers were answered and the legend come true.

However, our happiness was extremely short-lived. When humanity saw us, they did the same thing they did last time. They fought back with no mercy in a relentless war. Thankfully, because times have changed, they decided not to trap us Underground a second time. Instead, humanity decided to send us to another world without human inhabitants where we could live freely.

It several took years, but the humans finally finished their marvelous invention. It was powered by a mysterious force. At first, we thought it was powered by the human soul and an isolated source known as determination. They said that it was actually powered by something that absorbed emotions and turned them into power. Regrettably, they didn't tell us what this power source was.

We went to the new world to find it already populated by mysterious creatures who were just as upset at being invaded as the humans. There was no point in fighting these beings as they clearly surpass us in every respect. We returned to the Underground. In this parallel universe, it looked exactly the same. 

Instead of us sealing ourselves below, a dark hedgehog used seven gems to lock us away. He said something about how monsters would never become like them and live among them peacefully. When he used the gems, the unthinkable happened. We forgot completely about the Surface. My precious child never saved us. They never fell. And we will never remember our previous savior again. 

We're still here now. Waiting for a new angel to save us. Perhaps this force from the gemstones can break the barrier once again. However, who has the ability to control them besides the dark hedgehog we saw? Am I the only one who can remember the past timelines? I have found that I'm forgetting more and more each day. The effects must be slower to affect me than everyone else. Perhaps someone from the Surface will save us again. I am willing to hope. Everyone is willing to hope.

Oops! The pie is burning! Farewell, my dear journal. Until tomorrow~

-Toriel