Important Notice: Our web hosting provider recently started charging us for additional visits, which was unexpected. In response, we're seeking donations. Depending on the situation, we may explore different monetization options for our Community and Expert Contributors. It's crucial to provide more returns for their expertise and offer more Expert Validated Answers or AI Validated Answers. Learn more about our hosting issue here.
That is not currently known for sure. Episode 20 does indicate that she died of old age, but considering the script Nobuyuki and Yosho used to tell Tenchi the information (written by Kiyone) and the general bizarre way her death was treated, it is hard to know for sure if in fact this is true, or just another way for K-sensei to tweak the fans.
