well... based on your description, its probably that mary and franz were swapped, by having mary right before the twins, having franz after madeline.
however, from the psychological analysis standpoint as why deka made it this way, most likely he is playing it safe with the content, avoiding overly guro content; only franz meat toilet. if its something like graveyard executioner, everything were to be extreme guro from the beginning, thats a different story.
what we are lacking on right now is a yandere warden/domina (perhaps calling them warden better as they foresee their own realms). mika&maki would make good yandere twins of not going to let go of prota. but given the fact that both of them are all about indecisiveness, could be yandere or tsun, besides, there are some part where we delivered 'love' letter to one of them.
likewise, if this game still really in development, hora? (the one after raa) might be well worth to be made as an extreme yandere perhaps even more than our beloved famous gasai yuno
. and maybe, trying to leave her realm after being bound, would lead to becoming a daruma along with more stories after that
.
i like the idea of daruma, however, most of these kind of routes very much ended right after becoming one, thats it.