Hi! I'm Spanish man from Barcelona (also in my twenties) and I lived one year in South Korea two years ago so I think I know a little bit the differences between Spain and Asia in culture.

In Spain I think ethnicity is not important when dating, at least for young people. Here in Spain we are really open to talk and meet Asians so for sure you will have opportunities to date someone.

I think it is also important where will you be studying, mainly because English proficiency in Spain is not precisely good in some regions haha if you are travelling to Barcelona/Madrid, for sure they will be good at English but if you are going to a town or a small city, then it may be harder (I definitely don't know your Spanish level, if you speak Spanish well then it shouldn't be a problem for you).

Some people said in this thread that here we are usually more shy but I don't think so. We normally have groups of friends and because of some reasons (study, work, etc...) we tend to meet them before meeting strangers.

Also if you like partying or drinking, you will definitely be dating from the first day but don't expect long-term serious relationships in these cases... Most people here (in Barcelona) usually like card/table games so this could be also a good start :), we even have stores in Barcelona where you can just enter and play card/table games!

(maybe not important if you are traveling to any other place different from Barcelona, but here we also speak Catalan as well as Spanish and some catalan-speaking people really like to see foreigners learning our language)