This is the most realistic and healthy drama I've ever watched. Everything was so perfect and beautiful. I laughed with them, I cried with them and ofc squeaked at their adorableness. Love how every character was given a good closure. Taught a lot of lessons .And the actors did such good jobs. I loved every single one of them. And the OSTs were so good(the protagonist Im Siwan sung one of them too). I could really relate to so many characters and points. If you are thinking about watching it, please wait no more . You won't regret it