k dramas

Could someone recommend me a few k dramas fulfilling following criteria:
- lack of romance
- funny
- without any irritating, hateful characters ( in most k dramas there are some jelous ex-girlfriends/love rivals or *****y mothers etc)
- no more than 24 episodes
e.g. : Three Dads, One Mom

Please take these criteria into consideration before answering (by browsing some of other recommendation threads it seemed to me like some people dont even read what others are asking for, and just recommend any dramas they liked )

Salaryman's great. I would also recommend God's Quiz and Vampire Prosecutor, although they're more like CSI than traditional dramas. The two also have multiple seasons because of their styles, but they're easy watches, especially since they're cable dramas and the episodes are shorter. A Gentleman's Dignity is also a really good comedy; it focuses on the romance quite a bit in certain parts but the main theme of the drama is the friendship between the four guys.