In June 2016, while in the middle of his two-year mandatory military service, Park became the subject of a string of sexual assault charges. His father, who died on March 14, 2012, of an undisclosed illness, was a businessman.In July 2016, Park was acquitted of all four charges and counter-sued his accusers of false accusation and attempted blackmail. He has a younger brother, Park Yu-hwan, who is also an actor.In November 28, 2012, the legal battle between JYJ and S. JYJ proceeded to release The Beginning, a global album which was sung in English.JYJ promoted the new album via a worldwide showcase tour throughout October and November with dates in South Korea, Southeast Asia and the United States.I’m sorry that I couldn’t tell all of you beforehand. His fiancée allegedly followed up with her own personal message, telling netizens to stop leaving malicious comments about the people around her. In her no-holds-barred post, she also warned people who hurt others that what they did to others will come around and bite them in the rear. For In Heaven, Park co-wrote "Get Out" with bandmate Jaejoong.
As a member of SM Town, he contributed to the 2007 winter album Only Love with his composition "Evergreen".
For the group's Japanese releases, Park wrote and co-composed Park has also written songs for JYJ's albums.
"I Love You", a track featured in JYJ's 2010 album The Beginning, was penned by Park.
Park Yoo Chun has laid low ever since his scandal broke out last year, after the JYJ member was accused of sexual assault.
After months of radio silence following the acquittal, he took fans by surprise when he announced a few months ago that he would be marrying a non-celebrity in September.