As for what had happened in his past life, Zhang Yang recalled that when the Specter Invasion started, he was only Level 50 or so. He could only be a side-character, killing random small minions at the side of the map, while the other "heroes" charged into the real fight with Angus, Lord of the Seven Spectre King. While others had face trouble fighting him when they were already higher levels than he was, Zhang Yang could not even set foot in the fight! It might be a surreal fantasy, but the truth was factual, a Celestial tier boss, Angus had descended down to the human realm and brought the doomsday with him!
Even though each major city should have their own Celestial tier boss, due to several story plot devices, they were untouchable. Even the bosses in neutral grounds could not be touched as they were all friendlies. Players would not even give it a try since firstly, it would be extremely difficult, and secondly, there was no reason to.