@AH and @SecondLeadQueen
The whole show is called that way Kara:Secret Love. And each member has 2 part episode for each member story. So if you are looking for it, its doesnt take up the title per story, it goes collectively as a group. So search Secret Love
Ep1&2: MISSING YOU with Seungyeon and Yeon Woojin as lovers who eventually breaks up but tragedy happens, and she is given a chance to travel back in time
Ep 3&4: THE 13TH BUCKETLIST with Kim Youngkwang and Hara in a story about a young woman who discovers she has cancer and travels to learn what she will do with her life, and in turn meets a soldier who plans to end his life.
EP 5&6: LILAC stars Bae Soobin and Jiyoung is probably my 2nd fave in this whole lot. Its a about a girl whas a bright and positive personality that suddenly faints, when she wakes up she meets a man who is friendly and kind and is there waiting patiently for his Girlfriend who is comatose bedisde her bed
Ep 7&8: A SEVEN DAY SUMMER has Nicole and Lee Kwangsso, this one i so faintly remember but i think it has asomething to do with both of them trying to find someone from their childhood
And of course the last 2 episodes is HAVE COFFEE WITH AN ANGEL.