Jin left Japan for the US to prepare for his 5 cities US tour with reporters chasing after him as he was leaving at Narita Airport.
According to Nikkan Sports, Jin was always smiling as he made his way to the departure hall. He replied "Thank you very much" as the media offered their congratulations, didn't answer further questions they asked. Before boarding he said to them "行ってきます" (literally means: I'm going) and then left for LA.
-- translation from: @oblige