score:2
You, and many other European nationals, are allowed in to Seoul (up to 90 days), according to Ministry of Foreign Affairs:
[Schengen countries (except for Slovenia out of the 26 Schengen countries)], Austria (Diplomatic/Official: 180 days), Belgium, Czech Republic, France, Germany, Greece, Hungary, Italy, Liechtenstein, Lithuania, Latvia, Luxemburg, Malta, Netherlands, Poland, Portugal (60days), Slovakia, Spain, Switzerland
β» Denmark, Estonia, Finland, Iceland, Norway, Sweden (90 days within 180 days)