Amazon Video
E1Cold Reboot
Where to watch
Seasons & Episodes
E1
E2Foreordained Chance Encounter: Multiplexer
E3Our Beginning: Astable Multivibrator
E4A Promise That Connects: 3 Way Handshaking
E5Single-Minded Determination: Logic Gate
E6Lingering Memory: One Time Programmable ROM
E7Innocent Reminisces: Solidstate Memory
E8Turning Point: Flip Flop
E9Crumbling New Life: Latch Up
E10Unyielding Wish: XOR
E11All or Nothing: Schmitt Trigger
E12Promise: Protocol
Cast
Kensho Ono
Shun Tokinoya (voice)
Sora Amamiya
Yu Saegusa (voice)
Inori Minase
Nozomi Inazuki (voice)
Momo Asakura
Mio Tokinoya (voice)
Ryohei Kimura
Akito Sendo (voice)
Tomokazu Sugita
Ryusei Nagamine (voice)
Yoshitsugu Matsuoka
Mutsuki Naito (voice)
Kaede Hondo
Seshiru Sato (voice)
Azumi Waki
Emiko Takanashi (voice)
Yurie Kozakai
Satomi Tokinoya (voice)
Tarusuke Shingaki
Sota Inatsuki (voice)
Haruka Tomatsu
Yoshiko Sakagami (voice)
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Protocol: Rain — streaming FAQ
Which OTT platform streams Protocol: Rain?
Protocol: Rain isn't on any subscription service in Belgium right now, but you can rent or buy it on Amazon Video. It's not on Netflix.
Is Protocol: Rain on Netflix?
No, Protocol: Rain is not on Netflix in Belgium as of August 2026. You can rent or buy it on Amazon Video.
Is Protocol: Rain on Amazon Prime Video?
Protocol: Rain isn't included with a Prime Video subscription in Belgium, but you can rent or buy it on Amazon Video.
Where can I watch Protocol: Rain for free?
Protocol: Rain isn't available free in Belgium; you can only rent or buy it on Amazon Video.
How many seasons are in Protocol: Rain?
Protocol: Rain has 1 season in total (12 episodes). The series concluded in 2023.
Are all episodes of Protocol: Rain out yet?
Yes — all 12 episodes across 1 season of Protocol: Rain are out and available to stream.
Is there a Season 2 of Protocol: Rain?
No — Protocol: Rain ended after 1 season, so there is no Season 2.