K-fiend
They're like a dog who only eats Korean food. If you give them anything else, they'll bark at you. They're into K-pop, K-dramas, and everything Korean, even if it's just a meme.
She skipped school to watch a K-drama instead of going to math class.
He bought a K-pop album and then cried because it wasn't the right version.
He got into a fight with his brother over who gets to wear the K-drama merch first.