Because the Golden Bird Cage, with each bar spaced a full meter apart for footing, is absolutely not made of metal or digital code, but only of 3D objects in a virtual world. If a "hard to destroy" routine is written into the system, then even smashing it with a huge iron hammer wouldn't damage it in the slightest.
Thus, the imprisonment on the 2nd Layer is this very imaginary world that Fang Wushang deciphered.
The world's name is "ALfheimOnline", abbreviated as Fairy Fantasy. It is a virtual large-scale online RPG, a VRMMO game, operated by a company called "RECT-PROGRESS".
Fairy Fantasy itself is actually a very ordinary online game, currently running stably, with tens of thousands of regular players paying to enjoy it. However, one man, driven by his own desire, is secretly using this game to carry out an extremely massive, utterly illegal and inhuman plan.
