IU/Lee Jieun - She's always wanted to be a regular girl with regular friends and a regular life. Unfortunately, regular isn't what she is. Ever since she was born, she was destined to be married off to some man she's never known or seen before. Coming from a strangely traditional family, Jieun had never been outside of her household before. On the day of her marriage, she finally got the chance to go outside and look around at the world - which is way out of her mind. Because her marriage is to someone who also comes from a traditional family, she expects to find herself trapped inside of a home once again. Oddly, the man who she becomes married to is a traditional business group leader!

   P-Goon/Park Sehyuk - Topp Dogg's leader and valuable strength. This man has no regrets whatsoever of the life he left behind. After leaving his old life behind, he went on and created a large business group of men who he could confide in. Sehyuk lives in a large modern-luxury home with the rest of his group. Some say that Sehyuk used to be a gangster in his past life - but really, he was the man of Jieun's traditional family. After Jieun was born, he really liked her. Always taking constant care of her, he even had the thoughts of marrying her when they grew older. Unfortunately for him, her marriage partner had already been decided. Hearing the news, he became angered that he had no chance with her, so he ran away.

    Topp Dogg - Jenissi/Kim Taeyang, Kidoh/Jin Hyosang, Seogoong/Park Hyunho, Gohn, Jeon Hojoon, Yu Sangdo, Nakta/Shin Yoonchul, Kim Hansol, B-Joo/Kim Byungjoo, Xero/Shin Jiho, Atom/Kim Sanggyun, Yano/Seo Sangwon

    Suho/Kim Jun Myeon - Exo's timid leader. Although he is quite afraid of many things, there are some things that he had no fear for - such as: the Topp Dogg business group. His mysterious past life is something that no one in Exo knows about, but what they mostly focus on is his life right now. Just like Sehyuk, Jun Myeon bought his own home - but this estate is a traditional household made of wood, bamboo, and sliding paper doors. And just as tradition goes, there's also the arranged marriage. Coming from a large and prosperous family, Jun Myeon was destined to marry a girl from another traditional home. But when she becomes a part of the Exo household, unexpected things begin to happen to him!

    EXO - Xiumin/Kim Minseok, Lu Han, Kris/Wu Fan, Lay/Zhang Yixing, Byun Baekhyun, Chen/Kim Jongdae, Park Chanyeol, D.O/Do Kyungsoo, Tao/Huang Zitao, Kai/Kim Jongin, Oh Sehun