Harada Natsuki announced her marriage through a fax statement released by her agency on 2 June. In the statement, she revealed that she had married her boyfriend who is of the same age as her and works as a doctor. The couple met through friends two years ago and became an item in January this year. Harada praised her husband for being a gentle and mature person who always makes her laugh and marriage became a natural progression for them even though they've only dated for five months. Harada also recounted that when they met his family, she was impressed by his honesty and sincerity which made her feel that he is her ideal partner to form a family with. She ended the statement by saying that she will continue to work hard as an actress.
According to Harada's agency, she is not pregnant at the moment and there are no plans yet for the wedding. However, she has indicated to them that she hopes to hold the ceremony within the year.