Sneak peak into the story :

"it's fake, it's not like we're really getting married" 

Dara couldn't even believe what she was hearing "b-but why me?" 

"It's not that complicated, I just randomly selected you"  Jiyong carelessly replied "and plus I heard you're desperate for money so, it's be easier to persuade someone like you into this" 

Dara let out a scoff "well you're wrong, I'm not desperate-"

"oh really? Is your mother's medical bills paid yet?"

"Don't you dare mention her" 

"Alright alright Dara, just do this for her, I mean come on, I can clearly help you get the surgery she needs" 

Dara heaved a deep sigh 

"It's easy, all you need to do is play happy wife for 1 year and that's it, I let you go" 

Dara's mind was going haywire, but she decided to make a smart more 

"Fine"