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On July 1, he wrote, "Beloved fans, I'm getting married. I've come to begin a 2nd life with a precious person who has been with me through happiness, sorrow, and worry. To my fans, who are unbound in adoration for me and who always support and cheer me on, I'll continue to show my unchanging side in the future." 

According to a representative from Song Chang Ui's side, he's currently busy planning a quiet wedding with his non-celebrity girlfriend. They're wedding will take place this September. 

Congratulations!