Quick Answer
Protocol: Rain is streaming on Crunchyroll, Anime Digital Network, Bahamut Anime Crazy. 12 episodes (~5h total watch time). Availability may vary by region.
Where to Watch Protocol: Rain
Good news — Protocol: Rain has official streams on Crunchyroll and Anime Digital Network plus 1 more. We've got links for all of them, along with fallback search options.
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About Protocol: Rain
After an accident that killed his father and left his sister with a disability, Shun Tokinoya's mental duress has led to him refraining from online gaming. Now a model high school student who feels remorse over his past lifestyle, Shun works part-time in the cybercafe owned by his childhood friend Nozomi Inatsuki in order to support his family. Despite this, an incident pushes Shun back into the world of online gaming. Following the sudden retirement of all players of FOX ONE—Nozomi's...
Full details on MyAnimePulseFrequently Asked Questions
Where can I watch Protocol: Rain legally?
Right now, Protocol: Rain is on Crunchyroll, Anime Digital Network, Bahamut Anime Crazy. That said, anime licensing varies a lot by country — what's on Netflix in Japan might not be on Netflix in the US. If your go-to platform doesn't have it, try the other services listed above.
Is Protocol: Rain on Netflix or Crunchyroll?
It's confirmed on Crunchyroll. Netflix availability depends on your region — some countries have it, others don't.
Is Protocol: Rain available with an English dub?
Dub availability depends on the platform. Crunchyroll has been expanding their dubbed library a lot recently, and Funimation (now merged into Crunchyroll) historically had the biggest dub catalog. Check each platform's listing for Protocol: Rain.
Can I watch Protocol: Rain for free?
Crunchyroll offers a free ad-supported tier for some shows. Most other platforms require a subscription, but many offer free trials for new users. Tubi and Pluto TV occasionally have anime in their free rotation too.