So here are the phases

Phase 1: Origins

Starting with the prequel

Undertale determined souls (the first prequel AU)

UnderRune (the 2nd AU timeline taking place between the Secret basement incident, Chapter 2-4 of DR and future chapters of deltarune soon)

So kris (Male) and frisk (female) know they both don't exist in their own timeline

So I decided that frisk goes and stays at kris timeline, hometown

And that how the lore goes later on

Phase 2: 20 years later

Starting in futurerune (an Undertale AU)

Starting with the main protagonist Michael Arthur Dreemurr (9) (Son of kris and Frisk)

Him mysteriously ending up in the Underground and choosing to kill or spare mercy...

This story takes place in 2015

Then it's futurerune (Deltarune AU pilot i choose to do)

Where it's 20 years where kris (30) and frisk (30) this story takes place in 2015

Are back together again with thier son Michael, going back against old and new enemies

And old and new friends

Then there's

Phase 3: Legacy of the light

Starting with

Hazbin hotel: the fallen knight

Starting with kris being in hell, having no memory of what happened...

Knowing what he can do to try to find his past, but also changing what happens from the Canon timeline

Season 2 part 1: is where kris is a detective of hell, before leaving hell city to move at imp city

He solves one last case of a murder...

Will he find out before the murder escapes?

Season 2 part 2: the monster among us

kris arrives at imp city, meeting the I.M.P crew

He's there working with them as co workers, but cares about them later on..

And changes the conflict of the Canon timeline of helluva boss...

Season 3: The last knight

Kris moves back to hell city (probably around the Canon version of Hazbin hotel season 2 ending)

Where he meets old friends...

But faces one problem he has....

Kris is never evil and was banished from heaven after what happened in a flashback...

But kris will fight for redemption...

Or will he sacrifice to help those he cares about....

And that is all of the phases

If you don't like it, oh well it's your opinion, I'm not gonna hate you for it

But this was something I thought of all this time since last November

Anyways that is it

Extra: here's the orginal designs for Hellaverse AU kris Dreemurr