How to watch Ryu the Primitive Boy Episode 4 in English Dub?

You can stream Ryu the Primitive Boy Episode 4 with English Dubbed or Subbed audio by selecting your preferred server in the 9-anime.si player above.

What video resolution is Ryu the Primitive Boy Episode 4 available in?

The episode is available in adaptive 1080p Ultra HD, 720p HD, and 480p SD with high-bitrate stereo sound and no buffering.

Does 9-anime.si automatically skip opening and ending credits for Episode 4?

Yes, 9-anime.si features integrated AniSkip timestamp detection that automatically skips opening and ending credit sequences seamlessly.

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Ryu the Primitive Boy Ep 4

Ryu the Primitive Boy

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TV FINISHED 5.8 / 10 • 1971

Ryu the Primitive Boy - Episode 4

When Ryuu is born his tribe tries to sacrifice him to a Tyrannosaurus named Shirano because of the color of his skin. He is however saved by a monkey who raises him as her own son. Meanwhile Ryuu's mother has left the tribe and is out on a quest to find Ryuu. 16 years later Ryuu meets a girl named Ran who was sold to the tribe Ryuu originaly came from. The tribe is not happy to see Ryuu alive and tries to sacrifice him again, this time by burning him alive. Before they can get the deed done the tribe is massacred along with Ryuu's adoptive mother by Shirano. Ryuu then sets out on a quest together with Ran to find his mother and Ran's brother Don.

Adventure Romance

Episode 4 Viewing Guide & Storyline Overview

Canon Episode

You are streaming Ryu the Primitive Boy Episode 4 in full 1080p Ultra High Definition with English Subtitles and English Dubbed audio options. Episode 4 delivers critical plot developments, high-caliber fight sequences, and character evolutions crafted by top Japanese animation animators.

Powered by 9-anime.si's edge streaming nodes, this episode offers instant zero-buffering playback, adaptive resolution switching (1080p, 720p, 480p), and synchronized dual-audio channels. AniSkip smart timestamp integration automatically detects and bypasses the opening theme (OP) and ending credits (ED) so you experience uninterrupted narrative flow.

Technical Stream & Anime Specifications

Verified Metadata

Japanese Title: 原始少年リュウ
Animation Studio: Top Studio
Audio Codec: Dual Audio AAC 192k (Sub/Dub)
Video Resolution: 1080p Ultra HD (60 FPS)
Episode Duration: 25 min / ep
Broadcast Format: TV • FINISHED
Community Score: 5.8 / 10
Failover CDN: Active Multi-Server CDN

Key Characters & Voice Cast (Seiyuu)

Official Voice Actors

Ryuu

MAIN

VA: Makio Inoue

Ran

MAIN

VA: Michiko Hirai

Don

MAIN

VA: Hiroko Maruyama

Narrator

SUPPORTING

Elder

SUPPORTING

VA: Ryuuji Saikachi

Majara

SUPPORTING

Taka

SUPPORTING

VA: Ichiro Murakoshi

Miros

SUPPORTING

Episode 4 Frequently Asked Questions

Direct Answers

How do I switch between English Sub and English Dub for Episode 4?

Use the server selector pills directly above the video player to switch between Subbed and Dubbed streams. Both options feature 1080p crystal-clear playback with crisp audio synchronization.

How does the automatic intro/outro skip feature work?

9-anime.si integrates AniSkip crowdsourced timestamp verification to detect the precise start and end markers of anime opening and ending themes, automatically skipping them without cutting canonical content.