Netflix fans will know Hana Kimura from the popular series, Terrace House, and the star was found dead aged 22.
The cause of death has not yet been officially announced, but fans were concerned about her following a recent social media post.
In one of her recent tweets, the professional wrestler said: "I love it. I'm weak, I'm sorry."
Her death was first announced by her wrestling organisation, Stardom Wrestling, earlier on Saturday.
They said: "We are very sorry to report that our Hana Kimura has passed away. Please be respectful and allow some time for things to process, and keep your thoughts and