When both Kim Jongin and Do Kyungsoo's fathers' businesses fail, they decide to stop old feuds for the sake of their enterprises. In their twisted way of saving each other, their only children are married. But will this deal end up saving more than just the companies? 

Kyungsoo misplaces a poem on the desk of Kim Jongin. Jongin, however, confuses this accident as an act of fate. Things could be worse, Kyungsoo supposes.