Hitoto Yo announced on 26 April that she had married guitarist Yamaguchi Shuhei on 4 April and is currently expecting their first child. According to insiders, the couple had been dating for about a year since they met in spring last year and they had worked together during her concerts. They were first romantically linked in the media in January this year when they were caught on a date by a female weekly magazine. Hitoto is already 4 months into her pregnancy and due to give birth in early November. The couple chose to submit their marriage application on 4th April as it was the day after Hitoto finished the filming of her movie "Hana-chan no Misoshiru" which will be shown in cinemas from December. They are already living together and there are no plans yet for a wedding.
Hitoto was previously involved in a extramarital affair with music producer Kobayashi Takeshi in 2007 but broke up with him in the summer of 2013.