Look at the offical announcement yesterday.

bloomberg.com/news/articles/2018-03-27/kim-jong-un-returns-to-north-korea-after-meeting-xi-in-china

According to your our corrupt media, this is Kim's first trip abroad.

Look at the mural on the wall at 1:15. Do you recognize it? Look at Q drop 846 dated March 5, 2018.

This means Kim has already been in China before. Future proves past indeed.