Chen Mo's "Shadow" Shadow Blade at the backend of social terror can sniff out the emotional cancer in the code. When the core data is stolen, the geek duo uncover the "depression code" implanted by the hacker. Chen Mo trained Shadow Blade into an AI quality inspector and used the "personality API" to build an emotional firewall so that every line of code could withstand the test of the "heart" - the security of the data world starts with curing a line of code.