In December 2010, Kichise married an ordinary man 10 years older than her. She gave birth to their first child, a daughter, in July 2013 and her second daughter in October 2016.[2]
In April 2024, Kichise announced that she had divorced her husband via her agency's official website and a handwritten letter on her official Twitter.[2]
^"吉瀬美智子が離婚を発表「話し合った結果、今後は別々の道を歩んでいく結論に」" [Michiko Yoshise announces divorce: "After much discussion, we have come to the conclusion that we will go our separate ways from now on"]. Oricon. 2024-06-25. Retrieved 2024-10-12.
^"死刑台のエレベーター" (in Japanese). eiga.com. Retrieved 16 October 2025.
^"コンフィデンスマンJP" (in Japanese). eiga.com. Retrieved July 6, 2022.