10 hours of being a nation and already a majority of people want me annexed.
I was having a rebellion instead of blatantly stating, "Korean becomes a republic" out of nowhere. Since the monarchy of Korea were isolationists and didn't want to interact with other nations, it would've made a bit more since to have a rebellion because an emperor isn't going to stand down and not be ruler anymore, he is going to respond with brute force to show the public he isn't going to go down without a fight, this would outrage civilians to the point they would fight for more privileges and rights.
as korea has refused to acknowledge japan's demands, the japanese gunboats fire on korean ports and blockade them.
japanese troops in the country move towards hanseong (seoul)
I was occupied when you originally asked that, and yes, Korea will open its borders despite being heavily occupied at the current moment.