Question says it all. It was gotten from an event, but it is Korean.
Yes, event Pokemon that are in a different language from your native language count for the masuda method.
source - https://pokemondb.net/pokebase/377819/masuda-method-breed-pokemon-with-japanese-pikachu-pokemon and https://bulbapedia.bulbagarden.net/wiki/Masuda_method#:~:text=The Masuda method involves breeding,in games of different languages.&text=If both Pokémon are foreign,method will not take effect.