The Quantum Void

Overview
The Quantum Void is an infinite lifeless abyss located at the center of the Multiverse. It poses as the destination of everything that gets erased/corrupted or otherwise deleted from existence. Depending on your power level, it is possible to escape, though, for most beings, this is impossible. If one were to enter the Quantum Void, be it intentionally teleporting there or otherwise ending up there, they would slowly dissipate over an eternity into nothingness.

If a being of atoms were to enter the Coded Half, they would be almost immediately erased and sent to the Quantum Void. It is also true for beings made of code entering the Reality Half. A selected few beings in existence can bypass this rule, including Scratch Lunin.