I've watched lots of K-Drama, but this is far the best one ever, from the beginning till up to present, it really touched my heart, it's really hard to stop crying, because it's relatable. From the main actor, the best act ever, he deserve to get the best actor award, also the rest of the cast, his mother excellent acting, the twins are superbe. I"m just hoping it's a happy ending so it will not ruin the whole drama. I just love it!