The Narrator is a Time LordShe traveled back in time to document the goings-ons of Otogi City. Hence the "long time ago" and "they all lived happily ever after" at the beginning and end of each episode, because they make sensefrom her point of view (the relative future).
Ryoko is TaigaI won't state the obvious reasons. But it's either Taiga has finally grown taller, or a clone created by Majolica.
The Otogi Bank is run by the Corleone Family/or is another crime familyAfter playing the godfather 2 and watching the otogi bank in action, I have deduced that it is being run by Michael Corleone's decendants. I mean look at them! It's a f*** ing extortion racket. Plus their structure looks like a typical family (name listed as in the character sheet):
The butler of the Nezumi Corporation was deliberately being rude to the girls.Well, it looked like the whole bridal search was just to teach the young heir on how some things can't be acquired through wealth or power. The butler was only pretending to be rude so that his master wouldn't choose anyone aside from the "Zashiki-warashi".
Urashima isn't actually interested in any girl other than Otohime.
Ryoshi is a descendant of both Kellam and Stahl.He's a Ridiculously Average Nice Guy who people constantly forget seeing, with dark greenish-blue hair. One of them apparently married Olivia, too, given how shy he is.
The Narrator is related to the narrator from The Stanley Parable.Both are deadpan snarkers who endlessly lampshade tropes both works use, all the while being huge sources of laughs.