Teach You a Lesson: The Korean Behind the K-Drama
The school-justice drama also known as Get Schooled, and the Korean it can actually teach you, starting with the word in its own title.
Korean media is excellent input and unreliable instruction. Drama dialogue is often far more casual, and lyrics far more compressed, than anything you should say to a stranger. These articles show how to use both without picking up habits you will need to unlearn.
The school-justice drama also known as Get Schooled, and the Korean it can actually teach you, starting with the word in its own title.