The two first met on the set of the movie 『The Girl Who Leapt Through Time』 on March 2009, and after the wrap up of NHK's drama 『つるかめ助産院』 （aired August 2012） they went into dating in October last year. In joint names through fax they expressed that 「Four years ago ever since we first met, we have been really good friends. We made the decision to get married as we believe mutually in each other with respect to build a happy family together.」 Furthermore, they cited that 「Both of our matching motto is BIG LOVE. We will walk life together by cherishing this phrase.」
Both have yet to cohabit, details regarding their wedding ceremony or reception are also currently undecided. Hereafter they will then appoint their marriage date and submit their marriage registration. In addition, Naka planned to return to work as soon as possible after giving birth.