As the first teleportation array gifted by the System, the Final Gate is the location that connects the First Universe and the Original Realm, allowing travel between both worlds.
The so-called "First Universe" is actually a naming system devised by the researchers for convenience in their studies, using their own universe as the central reference point.
Similarly, another dimension currently merging with the "First Universe" is sequentially named the "Second Universe."
At the same time, upon realizing the existence of the Original Realm, they decided to define it as the "Zero Universe" due to its unique nature and out of respect for the Star Lord.
Generally speaking, the laws applicable between different universes vary, making even space transmission impossible, with regular people unable to survive entry.
However, the laws between these three universes are quite similar, with the Second Universe even causing a fusion to occur.
