It's only a 3 hour ferry ride from Busan and it only cost $156.57 roundtrip where as flying was over doubled the cost. I really wanted to go to Tokyo and Kyoto, but it's over $300 to fly and I'm broke right now.
I doubt I'll have time, but I may want to visit Kumamoto, and I was told to visit Dazaifu and Kitsuki. But I think Nagasaki is what I'm most excited for. Of course I want to visit Hiroshima one day, but for now these two cities will work :)
I'll be going July 29-August 2nd :)
Not sure if I should couchsurf, AirBNB, or hostel it out