Puppet Master (F-GOD Error!sans)

No one really thinks of the balance error did his best to keep, everyone knows the yin yan rules and ties. But none actually think it applies to the world they affect. At least, one creator certainly doesn't think it applies to his actions. The ignorant and wrongly confident Sanses, will see what happens when the balance tips without its support.

Error is pushed to the end, losing the spark to live after a hard life, forced hell, and being called the villain. But, maybe, his suicide doesn't go as planned; maybe a last hope emerges.
While the citizens of a multiverse travel to get back their only chance of survival. But will he want to go?