Physical therapist Kim Dan has been down on his luck for as long as he can remember. Between an ailing grandmother, menacing loansharks, and an old boss making it almost impossible for him to find work, Dan is truly running out of options. Naturally, it feels like a dream come true when he’s finally hired to treat top-paid MMA fighter Joo Jaekyung, you met him and you know if you offer him money you'll get what you want...