On September 8, 2025, it was announced that Shinya had been diagnosed with a brain tumor, and that, because the radiation therapy he would be undergoing could impair his mobility, his former protégé and Siam Shade drummer Jun-ji would be filling-in for him at Luna Sea’s upcoming Lunatic Fest that November. Additionally, it was revealed that Shinya was previously diagnosed with stage IV colon cancer in 2020 and had continued to perform with the band while receiving treatment, which included radiation, chemotherapy and seven surgeries.
brain tumor and colon cancer announcement
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