There was a plenitude of pocket dimensions in the twelve worlds, and all of them had different utilities. Some of them acted as sightseeing spots while the others were used by posthumans to hone their battle reflexes or to help them gain something useful to continue to travel in the apocalyptic worlds. After the pocket dimensions had turned into a sightseeing spot or a hunting ground, an unwritten decorum had come into effect—never kill someone you don't know.
Lin Sanjiu wondered why the rule was voided when it was her turn to enter the Reverie Libretto.
"We must not let them get to us."
Yu Yuan, the young man with tattoos, crouched beside her and said, "Judging from how Mayor Orlean played his card, I reckon that there is nothing he wouldn't do to reach his goal."