How our kim jong kook and song ji hyo facing with their lovely moments, bickering, sulking and teasing?

When two person changing their title from friends to couple, and hoping everything became more sweet and romantic, but, it's happened for a while. Everything not it good term and choose to break up. Will they believe in love again?

What's if when you and your partner decide to have a holiday and a date but getting disturb by your family members? 

After exhausted and tired doing mission in running man for level up, the winner goes to kim jong kook and song ji hyo, but unfortunately, both of them doesn't want to share their prize and end up having a final race. In episode 438, the commander and the ace alongside with their teammates doing the missions and the final winner decided by roulette and winner is song ji hyo! She receives a vacation to LA alongside with her team members, but only a person. Two days later after the episode 438,s

First, being with him is the most happiest moment Second, love start developing ​​​​Third, starting missing him Fourth, he came back as a stranger ​​​​​Fifth, he's already have a girlfriend Sixth, the revenge Seventh happy endin