Where All Beautiful Days Begin / Blue Archive x Undertale Fanfic

Hundreds upon hundreds of genocide in the underground have passed, yet not a single soul could remember them. It was a cycle of awakening, dying, forgetting and repeat.

And the culprit was none other than that child, at least on the surface.

Occasionally, there would be a few differences between each reset. Once, two other judges were transported into the skeleton's world to fight the kid. Another, Sans went on a murderous rampage of his own to get stronger and defeat the kid. None worked out in their favour, however; the kid's determination always brought them back to life after death. It would always end in a reset of both the world and their memories.

However, this time, it was different.

Sans didn't wake up in his bed. Instead, he found himself awakening in what seemed like an endless canvas of sand.

Not only that, but it seemed all his memories from past timelines have returned to him.

"*just what is going on right now..."

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Notes:

I DO NOT OWN ANY CHARACTERS OF THIS STORY, NOR DO I OWN UNDERTALE/BLUE ARCHIVE. Sans, along with Undertale, is made by Toby Fox, whereas Blue Archive is made by NEXON Games.

- Sensei is still here YIPPEEEEEE (basically sans doesnt outright replace sensei but instead just is here alongside him)

- Will mostly be written in 3rd person, focusing on Sans and Sensei.

- There will be many parts of this story that doesn't happen in canon and is instead added in by me to A - Help develop characters and do a bit more world building or B - Create new stories that help keep your interest in the fanfic.

- Sans will be buffed HEAVILY. (In canon he'd probably die almost instantly in BA due to his low stamina and relatively weak attacks without karma; more about this in prologue.)

- idk abt romance in this novel lwk you can tell me whether or not to add it (im deciding ships tho)