@AMicrowave it doesn't matter how much power they actually have, constitutional monarchy is still a monarchy. And atleast in UK queen actually has power - she's the only one who can declare war for example.
@SakamotoDeath according to their constitution, the emperor is "the symbol of the state". He has no real powers, only ceremonial ones. So, officially Japan calls itself a "Nation" or "State" and not an "Empire". The emperor has no power whatsoever, just a handful of ceremonial duties.
"Older male cousin"... Cousin... No thanks. ^^; That's still too close a relative for me. ^^; He sounds too perfect, too, I kinda hope he stayed behind and took care of those little siblings of hers with his superior empathy and consideration.
Usually I like these romantic isekais to take the "destined to be together ever since who knows when"-route but now I'm really hoping the cousin-boyfriend is fully out of the picture. ^^; (If he turns out to be who I think he may be reborn as, I might mentally flip a table xD)
@Fushiginiku uuh...i think what Lily meant by "monarchy" is in the traditional sense of "king ruling a country"; something like Absolute Monarchy. what Japan has is called a Constitutional Monarchy, whereby the monarch is the symbolic head of state, but real power is in the Prime Minister's hands. same with the UK, but IMO Japanese monarchs aren't as.....interactive? as the British. like, it's still a monarchy, but with a more ceremonial reverence to the emperor as opposed to western monarchs being regarded as actual passively influential persons. maybe i'm just less familiar with the japanese, but it really seems like their royal family is more hands off than the Windsors