Break the cycle

The Multiverse for a long time has been an endless loop. Both inside the AUs and in itself. Error and Ink making a truce then breaking it in any possible way. The Dreamtale twins fight until Nightmare dies and Dream sacrifices his soul to plant a new tree of Feelings recreating a cycle.
But, among everyone, there is one person who remembers each loop that took place and after a few centuries of trying to figure out what to do, he finally got it.
He will break those endless cycles and try to finally give the Multiverse some peace.
This is the story of that attempt. Will it work or will it all just be another pointless attempt to change what is meant to be ?

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This story will contain only a small amount of shipping because this is nowhere near of being the main focus, sorry.
Of course, none of the characters nor the cover belong to me. They belong to their rightful owner.