Hana, who starred in reality show Terrace House, passed away at the age of 22, with her wrestling company Stardom announcing the sad news.
Her cause of death has not yet been confirmed.
However, on Friday, the wrestler posted a picture of herself with her cat with the troubling caption: ‘Goodbye.’
Internet star Marzia wrote on Instagram: ‘I am very saddened to read about Hana Kimura taking her own life.
‘I hope that anyone, both on the internet and everyday life, can take a moment to think about their actions, and how they affect others.’
Marzia continued: ‘Negativity is too easily spread, sometimes from people that are looking to feel better by bringing someone else down, or simply bored, looking to stir up harmful and pointless drama.Marzia penned a heartfelt message (Picture: Instagram/itsmarziapie)
‘Whatever the reason, if you’re not being kind to others, please ask yourself why you try and hurt them.
‘Even if for you it’s just for fun, you do not know how the person you are directing your comments to is going to interpret them, or how they are going to affect them.
‘I totally understand that criticism can be helpful for growth, however, I find that most of the time hate is disguised as that. You never – ever – know how exactly a person is feeling, and you must realise your words hold weight.
‘If you feel like you are alone, and are having dark thoughts, please know that there are genuinely nice and kind people that can help. You will face many challenges in life, and if you are going through a difficult time, please keep fighting.Hana passed away at the age of 22 (Picture: Getty Images)
‘I usually don’t state my opinions this way; I try to keep my presence online as ‘light’ as possible, but my heart is hurting today.’
According to Variety, Kimura recently shared a number of concerning tweets before her death, in which she said she ‘didn’t want to be a human anymore’.
She reportedly implied she had been cyberbullied, and wrote: ‘Nearly 100 frank opinions every day. I couldn’t deny that I was hurt. I’m dead. Thank you for giving me a mother. It was a life I wanted to be loved.Friends and fans have been left heartbroken (Picture: Getty Images)
‘Thank you to everyone who supported me. I love it. I’m weak, I’m sorry. I don’t want to be a human anymore. It was a life I wanted to be loved. Thank you, everyone. I love you. Bye.’
Hana also alluded to self-harm in a number of tweets.
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Fans and friends of the star have been left heartbroken, with wrestler Sü Yüng writing: ‘I will always love and miss you, my friend. You are my little sister. The Swanns send our love and condolences to Hana Kimura, her family, and loved ones. I will never forget you. So much I want to say… my heart is broken.’
Jamie Hayter posted: ‘Distraught. I don’t even know what to say or feel. Numb. I can’t express it. RIP Hana Kimura. Such a wonderful human being. The gaijin helper. All the potential. A beautiful soul. Kind. I just can’t even put in to f***ing words how upsetting this is. I hope you found peace.’