[Pineapple924]

So it's revealed Zaia, or more specifically Gai was responsible for the Ark. Zaia was the company that created the Ark's AI, and Gai made it study criminal psychology and humanity's lust for war. Ultimately driving it into concluding that humanity must be destroyed, resulting in the Ark creating MetsuBoJinRai as a result.

While this does bring some credibility to Gai's cockiness for thinking he's smarter than everyone because he was apparently able to plan out the past 16 episodes. I doubt he'll be in control forever, and as such I'm actually interested to see how he reacts when it all goes south for Zaia.