Hi Seiya! Welcome and thanks so much for joining!
As an aside, I love your country; my wife and I visited during our honeymoon and it holds a very special place in our hearts.
If you're into emulation, I can't recommend
this post more highly where AmigaLove member Mattsoft built an incredible A600 MiSTer. I've personally played with the machine twice now and it drops my jaw every single time.
It can be an Amiga, a C64, black and white Mac... Sega Genesis! We played Sonic on it last night and it looked
perfect. And the Amiga and C64 cores are really, really good. The experience - if you ask Matt - is better than the Pi (which he has also built).
That all being said, I know a lot of folks will simply play off their Windows laptops, too.
But if you ever get the itch, the MiSTer is amazing.
Welcome! And I look forward to seeing you around the site.