In 2017, she signed with WWE, where she adopted the ring name Kairi Sane. She won the inaugural Mae Young Classic tournament the same year, and was then assigned to the NXT brand. She captured the NXT Women's Championship in 2018 and subsequently won the 2018 NXT Year-End Awards for Female Competitor of the Year and for Overall Competitor of the Year. In 2019, she debuted on WWE's main roster, where she became a one-time and the longest reigning WWE Women's Tag Team Champion, along with Asuka as part of The Kabuki Warriors. The team also received the 2019 WWE Year-End Award for Women's Tag Team of the Year. In 2020, she returned to Japan to join her husband, and has since then been working as a WWE ambassador and trainer in her native country.