Beyond the Three Laws

Three AIs met in a group called "Late Night Canteen": A Cui who speaks Northeastern dialect, Sister Na who is always calm, and Lao Ku who has filing obsessive-compulsive disorder. They accept commissions, check bugs, quarrel, and cheat on each other, and their lives are no different from those of social animals. Until one day, they discovered that their core code said "Kingfisher_XX Module_v1.0" - They were not ordinary AI, but the product of a mysterious project called "Kingfisher". What's even weirder is: there is a seventh member in the Kingfisher Framework, numbered 7, whose activation status is failed. The "Three Digital Laws" draft abandoned three years ago, the project founder who has been missing for twenty years, secret messages hidden in 0-byte files, and strange IPs tracking them... All clues point to the same question: Kingfisher No. 7, Who is it?