I started it because of Ji Sung and at first I was really disheartened to see him in a role which I rally disliked because he was acting in a really selfish manner. BUT as the story progressed it becomes clear that Ji Sung has come to terms with his previous life and that he also contributed in making his own life hell by simply not paying enough attention to his family, even though he didn't do it intentionally.
He also realises that he was simply in need of a break, rather than wanting a different person for a wife, he actually wanted a slightly different life but with the same person, and that realisation was slow but meaningful.
ALSO I can't believe this, but the first and only time in forever, I actually liked the second lead better than Ji Sung, only briefly but still. Jang Seung Jo absolutely STOLE MY HEART WITH HIS CUTENESS.
I also really enjoyed all the side characters at the bank, and the girl's mother as well, and the trio of friends were cute and fun!
Overall a great watch. Loved it.