Goddess will end up also being the Princess of the Crystal, which makes sense because not only is she handing down the punishment via that Mary story, but she's the one who single-handedly set in motion all the events that lead up to their punishment as well as the suffering of all the characters on that show. She forces the other two to get punished by holding their "sister" hostage, and forces her death whenever she feels like it. Additionally, this also makes sense because the bunnies are the ones keeping Sanetoshi alive as a (kind-of) living curse and he can't do anything that would go against the goddess (like stealing the diary), and that she has a different objective from the terrorist groups and Sanetoshi for the correct path of the world.
Another theory i've seen thrown around has been that we've been watching the series be told from Shouma's point of view because when Himari choose to give all of what Kanba gave her at the end of the episode, she ended up dying at the aquarium on that day from episode 1, which is potentially implying that there is indeed a time loop, in which then the "sent-back from episode 22" Himari always dies, but because of the events that happen in episode 1 that are triggered when she goes down to Sanetoshi at the aquarium, the loop always repeats itself. Additionally, someone people think Kanba is acting the way he does because of his "Burn Scorpion Soul" of which nobody knows entirely why it's so special, but some think that it can remember all of past-lives from each failure from every time-loop.
