Storytelling and simplicity of love story

This is the best asian drama I ever watched...... everything is just so good.... performance of the both the leads is just the best out of any romance drama I ever watched.....they just make this simple story to once in a lifetime experience... and the way director captures every scene and the fact that she knows what audiences want out of every scenes ......visuals is something which kept you thinking (whether I should watch their faces or acting).... that's just what I can say
This is once in a lifetime experience so everyone should watch this