Hey could anyone recommend to me some dramas like Oh My Venus & Another Miss Oh aka dramas with realistic mature characters which also don't include cliches?(By the way,I have started watching It's okay,that's love,& I have already downloaded Discovery of  Romance which both have such characters as far as I know) Thanks in advance!
Dear My Friends is by the same writer as It's Okay, That's Love and fits your bill. Some other dramas with mature characters are:
Romantic: Alone in Love, A Wife's Credentials
Non-romantic (unlike OMV and AMO): Misaeng, The Good Wife
I hope that helps!
i need romance series (i have only watched 2 and 3 and i really enjoyed them) 
the lover (2015) 
Kill Me Heal Me, Queen In-Hyun's Man, Master's Sun, Marriage Without Love, Scent of Woman, Cruel City, God's Gift - 14 days, Signal, Healer, Heart to Heart, Secret Love Affair