First, the location of this computer must be in the real Yu Liang's home.
Putting everything else aside, Yu Liang was clear about where that Yu Liang had actually gone.
"Real Yu Liang" was thrown by him into the Second Layer World, where he would live forever with Ran from the First Layer World.
That's why "Real Yu Liang" had left the computer at home, resulting in the true fact of "abandoning" the current Spooky Copy of Original Strange Talk.
Similarly, this computer couldn't possibly be inside the Mirror World, because he was the mirror image of Yu Liang.
If this computer were in the First Layer Mirror World, then the Yu Liang that the Desktop Pet from Strange Stories on the computer was looking for should be him, which doesn't match the actual situation.
