Red River is currently announced as a TV anime with a July 7 premiere in Japan, but I don’t see a confirmed global streaming service in the available information yet. The strongest signal so far is that the official anime news coverage points to broadcast details, not an announced streaming platform.

What’s confirmed

  • The anime is set to premiere in NTV’s AnichU block on July 7, with BS NTV airing it on July 8.
  • Coverage from the official anime news source mentions the broadcast schedule, but not a streaming partner.
  • A Crunchyroll news post confirms the trailer and July 7 start, but the snippet shown still does not name a streaming service.

Most likely outcome

  • The series may later be picked up by a major anime streamer, but that has not been confirmed in the information available right now.
  • If you’re trying to watch it at launch, the safest assumption is Japanese TV first, streaming announcement later.

Practical read

  • For now, the answer is: no streaming service has been officially confirmed in the sources I found.
  • The situation could change close to premiere, since anime streaming deals are often announced late.

TL;DR: Red River does not yet have a confirmed streaming service in the currently available announcements; only the Japanese TV broadcast has been clearly stated.