Pain of the Fallen (Undertale NEUTRAL ROUTE AU)

Why are they Evil?
Why is this child punished for defending themselves?
Is one side truly pure evil even if it's self defense? What does it truly mean to have that power to control the timeline?

Save, load, reset all of that power certainly can cost something of the user and are you truly friends if you would've killed them in a overwritten timeline

Let's really see the price of misjudgements and the cost of dragging a child in a situation that could have ended a long time ago