With the world now aware of my existence, thanks to my over-the-top flaunting like I'm some kind of badass villain, it's safe to say they're all going to be side-eyeing me like, "Oh great, here comes Zero-One. Guess we're just gonna die."
What I did was a bold declaration to the world after killing all those people: "I don't give a fuck about your rules."
I was guessing that every country had some sort of arrangement or treaty with Cerebrum and other affiliated gifted organizations. It was the only way they managed to keep the existence of gifted individuals under wraps for this long.
The ships sent by Cerebrum was an obvious evidence of this collaboration. It was apparent that the North Koreans must have reached out, seeking assistance to handle me, as they lacked the manpower to take down someone of my caliber.