Takeuchi was married to Shidō Nakamura II (who had co-starred with Takeuchi in the film Be With You) from May 10, 2005, until their divorce on February 29, 2008. She had a son with Nakamura who was born in November 2005. Prior to the couple's divorce, Nakamura had apologized for a drunk driving incident where he was with actress Aya Okamoto and later seen with actress Saki Takaoka. After the drunk driving incident, Takeuchi reportedly moved to live in her management office shortly before filing for divorce in October 2006.