This is definetly the year of korean bl's.
I started this BL with not much expectations and ended watching it with it becoming my top 2 !
What was good about it? Well, everything. The original plot was amazing and well made. Not to mention the episodes were longer than usual (30-40). This series don't need a lot of nc/kissing scenes etc to be perfect. It's perfect because of it's story, cast and music. I really can't mention a reason of why not to watch it.
Go watch this masterpiece, you wouldn't regret.