Cheer Up/Sassy Go Go. THIS DRAMA IS TOPS. Seriously. Oh my god. The feels in this. The writing. And all of the acting was spectacular. I was never for a second bored watching this drama. It follows the students belonging to two separate groups of an elite high school and their interactions with each other and the pressure or influence from the adults in their lives. This drama is one of the best I've ever watched. And one I will definitely watch repeatedly.