The formula was as you would expect from this kind of poster and synopsis. To occupy the runtime, all of the leads were cycling through different relationships every 1-2 episodes. While that's not really a problem but I wish they took the opportunity to use these passing relationships to better anchor the characters. That can also play a role in improving the group dynamic because as it stands now, their dynamic was pretty bare-bone and bland. Speaking of which, the four leads were really lacking in differentiating characterization, it was like they all played the same character to some extent. The different scenarios of first encounters, relationships and breakups were all things we've seen many countless times in the past, it didn't really show any new or creative ideas/scenarios. If you were to have the sexiness as a measurement, then the drama was on a steady decline from its initial episodes. It's a bit unfortunate because we don't get these kind of shows nowadays.