The Head-Mirror Race's shops were all called "Little Mirror." Perhaps they were simply terrible at naming things, or perhaps it held some symbolic meaning. In any case, whenever one saw a Little Mirror shop, it was undoubtedly run by the Head-Mirror Race.
This time, many Head-Mirror merchants had come to rent shops, which led to conflicts in naming. Thus, serial numbers were added.
The earlier the number, the stronger the backing, and naturally, the more comprehensive the goods.
The first three belonged to the Head-Mirror Race's official shops. Officially run businesses surely would not be too shabby. So, if one truly wanted to browse Little Mirror shops, the first three numbers were the best choices.
After briefly explaining the Little Mirror shops to Angel, Luigi entered the Layer-Jumping Stairway. "Let me first see which layer we're on."
The Layer-Jumping Stairway resembled a pavilion made of crystal.
As soon as Luigi entered, the crystalline walls around him began to ripple with streams of Aggregation Energy.
The Aggregation Energy turned into flowing light, forming an illusory number out of thin air.
"3929"
The number continuously bobbed up and down. It did not seem fixed, as though the slightest flick could alter it.
That was indeed the case. Luigi reached out and casually flicked the final three digits, turning 929 into 000. Then he flicked the first digit, changing 3 into 4.
The illusory number now displayed "4000."
Luigi turned to Angel. "Come in. We're currently on the 3929th layer. Our destination is the 4000th layer."
Angel roughly understood Luigi's operation and followed him into the crystal pavilion. Laplace entered as well.
When all three had gathered within the pavilion, Luigi once again manipulated the Aggregation Energy. The illusory number slowly faded away, and as it vanished, Angel sensed a faint distortion in