Jo In Sung and Kim Min Hee met 10 years ago during their modeling days. Now a decade behind them, they have grown together as a couple since around the New Year.

Understandably, their time together was mostly in secret, including drives around Seoul and hanging out in their cars in a parking lot. When they met in public, there was always company.

So how did the two super stars come to build a romantic relationship? Their date on April 17 has the answer. Kim C was the bridge between the two. He is Jo In Sung's best friend and an acquaintance of Kim Min Hee's stylist who is very close to her.

The four of them met frequently back in January. An acquaintance revealed that "Because everyone was comfortable with each other, it was probably easy for them to open up and be themselves. They showed interest for each other and naturally the relationship progressed." Their similar background must have helped tremendously, as they both debuted as professional models and then went into acting.

Another source close to the actress commented that "The two of them are both veterans in this field. They have had similar experiences and can understand each other very well for that reason. They had good chemistry to begin with."

Jo In Sung, who recently finished a successful drama in 'That Winter, the Wind Blew,' is under consideration for his next work. Kim Min Hee's new movie, 'The Temperature of Romance,' is doing well in the box office with close to 2 million tickets sold so far.