I wish I could give 8 ratings instead of one, to be fair to every story, since that is not possible, I'll do that here: order based on my preferences)
8-Han Soo&Eun Hee 2/10 (I really hated this one, I was almost gonna drop the drama because of it, thank God that I didn't)
7-Young Joo&Hyun 4/10 (not the type of story or the message that I'll want to watch)
6-Mi Ran&Eun Hee 5/10 (a decent story about friendship)
5-Ho Shik&In Kwon 7/10 (The scene in prison cell and the scene between In Kwon and his son in ep8 get 10/10 from me that's when I decided not to drop this drama)
4-Dong Seok&Seon Ah 8/10 (Just watching Shin Min Ah and Lee Byung Hun in one story was enough, I didn't expect much, but ended up loving it, Seon Ah's character developpement was great)
3-Choon Hee&Eun Ki 8.5/10 (ep17 turned my eyes to a waterfall)
2-Young Ok&Jung Joon&Young Hee 9/10 (Young Hee was a bless, so happy to see Kim Woo Bin in a drama again he had a great chemistery with Han Ji Min)
1-Ok Dong&Dong Seok 10/10 (A movie that you need to watch, mothers stories are one of my weak spots, they used it so well, seeing Lee Byung Hun and Kim Hyeja's acting was the gem of this drama, they were so good that I can't call it an acting)
Lee Jung Eun had was in the 2 weak stories but had more presence than the rest of the cast, she gave us Eun Hee the strong independent woman.
My favorite characters that I just loved seeing them in every scene are the two "halmoni"s Ok Dong and Choon Hee what a warm duo!
Over all, it's 8.5/10 and I'm sad to give it that rating after watching such a masterpiece in the last 3 episodes, I wished if they took off some weak stories and shrinked it to a 16 episodes drama, it would have been 10/10, it took me 8 episodes just to decide not to drop, but this drama was unique, special and so real.