This is mostly for those who've read the Manga, un chapter 34 it says that but calendar year is 46 is Yamato calendar year is 68, hypothetically if one of them conquer the other the calendar year will be one of those, if I am a citizen of but and born in the year 20 and Yamato conquer my country making the calendar shift from 46 to 68 am I born in year 20 or year 42 ? And vice versa if but conquer Yamato and I am born in year 56, once they conquer and the calendar shift to buo am I born in 56 or 36 ? And if a generation ends at year 40 on both sides as a citizen of Yamato i would be gen x but once buo conquer Yamato and my year when I was born is 34 now I will be gen y, idk i cant understand how 2 dif country's would adapt new calendars once the other dissappear
||also buo and yamato are only regions left meaning the one who wins the war would technically unify japan back again (even if buo would need to defeat the puppet state) its kinda certain that 100 years after the war they would most likely have some form of identification or they even have alr in this point of the story, how would the identitication work in this sense if it exist already or if it will exist 59 years after the war, even if they create a new calendar for the unification of japan it would make the matter of generation determination harder bc you cant group just before and after unification bc a 3 year old can be in the generation be4 the unification while a 1 yr old would be in the generation after unification, the dif would be 2 years yet the 3 year old would be in same generation as a 90 year old||