Saeun and Krystal are one of the most well known K-pop idols. They have such good interaction onstage that Sajung became a ship, but that all fell apart when SM announced Kaistal is real shattering thousands of fans heart. But for those two, both could careless. Well because their interaction was just all an act. Offstage the two are the worst combination in K-pop history. Fights were constantly happening due to performing for comebacks. Sometimes those fights were bloody too. But how can two idols who hate the living hell out of each other deal with getting married to each other. Especially when they have to revolve their whole life around each other.