Hmm interesting that it is 18+ type of drama, I do not remember things to make it for this age, but I can be wrong. There are many serious topic as suicide, mental problems, bullying. But cast played really well, had great chemistry together. I like the plot twists, I like that it has only 12 episodes, it is perfect amount for this drama. But there are some questions unaswered - as for example his illness. But yes as far as it can sound weird with topics of drama I had fun watching this.