Gu Fan actually took the whole blame, which was rather gallant of him. Strictly speaking, it should be half the responsibility of the design and half of the programming, after all, while Lilith did write in the design document that the Supervisor is very powerful, she didn't explicitly write that it wouldn't die!
Gu Fan concluded his remarks, "So, there are a total of eight critical BUGs, of which I have two pots. In these two pots, there is half a pot that I took on voluntarily out of a sense of duty."
"Actually, apart from these BUGs, there are other factors that lead to the creation of BUGs. For example, the high walls of the Divine Realm were lined with Heaven's Guardians, but it was also because of these Guardians that the merging mechanism with the Lost Ones was triggered, allowing players to cross the last distance and successfully fly onto the city walls, achieving the first-ever successful prison break."