You should watch it! This drama was fun and it kept me from being bored. I'm pretty sure you can watch it on Youtube too. Personally, I think that it's hard to judge the story line of short dramas, since they are short for a reason. I would say that A-Teen is a basic story line of a short drama, if you've ever watched one. What I mean by that is that there isn't really a "main character" and that there's a lot of each character's thoughts. Plus it's your average high school romance, school, friends, decisions etc. Even so, it's nice to watch one of these dramas once in a while.

The con for me is that I didn't really like the couple going on. I won't spoil anything, but that's what I thought. It's hard to say without mentioning their names, but long story short I didn't ship them.

A-Teen was a fun drama that has guests like NCT's Jeno and Jaemin guesting, which I thought was fun to see them act. So if your free right now, you could literally finish it today. So watch it!