Pairing Names

Although Seo Jin and Oh Joonghyuk have known each other since they were kids, they have always been cold towards one another. One day, Seo Jin realizes that he has Joonghyuk's name tag from middle school and falls asleep while reminiscing about the past... Only to find when he wakes up that he is now inside Joonghyuk's body, the person whom he hates the most!!! How will these two live from now on? Will they be able to switch their bodies back? +