Nae Hana, the only daughter in Nae's family. She also the head of a famous company called the Cotton Company. Eventhough it called with cotton, it doesn't mean that this company sell cotton. Instead of selling cotton, this company sell books. Most of the companies in this world are ordering books from this company so, due to this informations, it is sure that Nae's family is a rich family among the richest family. Nae Hana also has a bestfriend named Byun Baekhyun. Baekhyun is the 2nd son in the Byun's family. This family is also a rich family but not richer than Nae's family. But, every people has enemies with them. Nae's family has an enemy called the Kim's family. This family also a rich family and they have a company called the Red Carpet Company because this company sell any luxurious things like crystals, golden accesories and so on. This family have a son named Kim Minseok. In a moment, Minseok choose to take a job as a manager of a company and he then accidently joins the Cotton Company but luckily, Minseok and Hana never meet before and they become bestfriends. As you knows, bestfriend can become a sweet couple and this is what happen with Hana and Minseok. They fall in love with each other but not yet become a couple. Knowing that Minseok is the only son in her enemy family, will Hana accept this Hate, Hard, Horryfying, Helpless, Harmful LOVE?