The series is available to Buy (starting at ~$6.99/season) or stream via subscription. Purchasing the season often allows for authorized downloads within the Prime Video app.
If you prefer a permanent high-quality copy, released the OVA collection on Blu-ray in the U.S. on July 18, 2023. Episode 001 Content Note Download Thus Spoke Kishibe Rohan 001 mp4
Digital purchase and download options are also available through this storefront. Physical Media The series is available to Buy (starting at ~$6