I knew she would jump back.. Im wondering how they will merge the 2 realities tho.
If she zapped back just say the night after the last scenes we saw then that means her younger self would have been Seto's lover alone up to the present day- which should change the new current day Nana's situation- and she should also instantly gain like the last 10 years of back memmories her new younger self through to present day her should have. (if that makes sense lol). Alternatively should could forget the years she lived with Seto till now but that would be a bit sucky.
The alternative to all that is that she was in an alternative parralell world past- not hers- so this world is unchanged except her new memmoies and she can use her new confidence and just go and get the girl.
well I think there are at least a few options
a)the entire point of the story? never happened. no consequence on the real world at all(very unlikely)
b)She keeps her old self's and new self's memory of the events that happened, effectively doubling her memory of the events from these chapters, but a singular account for right after she disappears
c)time has passed normally with her old self not there, but the old self hijacks the past self(now the same as the old self)'s body and has no recollection of any events from the past like 5-10 years.
d)I don't remember when she got put into the time loop, so maybe she is sent a day before the entire meeting happens and changes a bunch of stuff
e)She never existed. She is sent into a world where she never went back in time, but the events of what she DID while back in time stay. essentially the spiderman thing, but only the old self is forgotten, not the entire person. Her old self and seto are still dating, Seto is probably a successful actor, they are probably living together, etc. etc.