Subahibi spoilers
I'm sure this is referring to DTRH1, but I don't have much of a theory yet for how that personality was trapped in the false reality while still being active during DTRH2. I do remember that Yuki was constantly sleeping during DTRH1, so maybe the Yuki we play as in that chapter is only awake whenever she's dormant within Takuji in reality? I could probably verify this by checking if there are scenes that happen simultaneously in both chapters, but that sounds like a lot of work... As for Zakuro, well... I'm still pretty clueless on what her deal was. She never played her "prank" with the text messages during LGI, so I assume that was all Takuji, but I can't really tell what that means yet, and I wonder how she managed to be within the false reality with Yuki...