First thing I often found on CDrama is (no complain here ?) how often that the FL have close friends and how good their relation are. No exception here, all the charachter are different but they can pull it out and make it believable. They are such a fun group with the brother as their piggy bank..LOL
Story wise, its very simple with no drama, no cheating and no backstabbing. This is tge drama you may find enjoyable if you just want to enjoy light story with slightly cheesiness and funny scenes.