God knows I've watched a million kdramas, this is the best one ever. I'm not exaggerating, watch it, you will cry every single episode. EVERY. SINGLE. ONE. I promise.
And you will cry for many reasons. It's painful, it's wholesome, it's heartbreaking, it's warm. It makes you feel guilty, makes you feel loved, makes you feel sorry, makes you grateful.
Please watch it, you won't ever regret it. I envy those who get to watch it for the first time ever.
Acting is amazing, aesthetic and cinematography are incredible, it's perfect. It will break your heart and it will mend it.