Shen Yibai used the access card secretly left behind three years ago to enter the fourteenth floor that should not exist. There, he met Sun Jianguo, who had been missing for three years, and saw the names densely written on the four walls - the last traces left by hundreds of forgotten trapped people. But someone had been here before him and cleared all the writing on the wall, leaving only one sentence: "Rules are not meant to be followed, but meant to be read."
There is also a black chess piece with the word "ENTER" engraved on it.
Shen Yibai discovered that this chess piece was an invitation and a letter of challenge.
