I like how every chapter of Remix Heart gives us one-to-two lore tidbits followed by school life nonsense. So, Cajun is with Sector Seven and is probably intended to be a spy within the Intelligence Department of the NOL. Mai—having shown extraordinary aptitude with Ars Magus, knowing and even hating Jin, appearing in the Hazuki Estate, and Tsubaki recognizing his male form (from likely a Duodecim gathering) at a glimpse—is pretty much guaranteed at this point to be part of the Duodecim. Of course Mori could pull whatever card he likes, such as Mai was merely a servant or the crack theory that Mai is Amane after his genderswap ordeal.
Or he could do the one I like the most, which is the 'everything else' option. Fun stuff. Thanks for the release, Emma.
