The multiverse consists of two parts with infinite AU's on both parts. One of them is full of Reversed History AU's and the other one is full of Undertale AU's.

If you don't know what Reversed History is, it is basically an AU where humans have the weak souls and lose the war against monsters.

This was the context you needed to know. Now lets get to the point.

What is this game about?

This game will be like an Ink Sans fight in Last Breath style. The person you are fighting, however, will not only be Ink. It will mainly be Kamalium.

You didn't even tell me the story yet-

Well it goes like this: The player wants to gain as much love as possible so they start to torture everything in the multiverse. They travel around the AU's and torture every living thing they see. They do not destroy the AU's, they let them exist to be able to make them suffer more. However, the monsters outside of all the AU's (Ink, Dream, etc) realize this and start repairing the broken AU's and give people hope. This makes the player angry so they decide to kill these monsters first before continuing the thing they do. They start with Ink and while they are fighting, a portal appears behind Ink...

Who is Kamalium?

Well thats me... kinda. Although we are still not so sure about his role in the multiverse, you can think of him like the Ink Sans of the other part of the multiverse for now. No, he is not an alternate version of Ink Sans, he is just similar in some ways.

How many phases are there gonna be?

For now there will be 4.5 phases in the game. Some of them will be hard and some of them will be easy. It doesn't work like "Phase 1 is the easiest and Phase 4 is the hardest" tho

Well I think thats it for this post. Tell me if you have any questions or if you want any spoilers. I hope you liked it!

Btw here is the Youtube channel of the co-owner (and actually the founder) of this: https://www.youtube.com/channel/UCzniP5-iLK0eLCCTRNJL5rg

And here is the old OST which will not be used (maybe we can use it in credits idk): https://www.youtube.com/playlist?list=PL67zyAaXR6jZSaiZO3np28QZVpi61L6vI