Song Joong Ki, since when is your relationship? Estimation of 'Net user investigation team' is winter of 2015.

2015

* June, TV Series "descendant of the sun" shooting taken

* End of shooting in December

2016

* In January, Song Joong Ki inserted to Song Hye Kyo pictorial photography

* February, "descendant of the sun" started broadcasting

* Dating in the United States NY in March