TV
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.
Last Episode Aired
1972-03-25
S1E22 — Towards Tomorrow
Where to Watch
No streaming or digital rental offers currently listed in US. Switch region above to check other catalogs.
Availability data provided by JustWatch via TMDB
Billed Cast
Makio Inoue
Ryu (voice)
Eken Mine
Karimu (voice)
Gorō Naya
Kiba (voice)
Check-In Log
Episode Watch Tracker
Check off episodes as you watch (saved in browser — sign in anytime to sync).
Loading season episodes...
Spoiler-Safe Screening Room
Episode & Series Discussions 0
Dedicated threads unlock on each episode's premiere day. Inline [spoiler] tags stay blurred until clicked.
Join the Screening Room
Sign in to post episode reactions, fan theories, and upvote community dispatches.
Loading discussion thread...
Audience Ledger
Community Micro-Reviews
Concise 1-sentence dispatches from DidItDrop members.
No micro-reviews yet — rate 1–4★ above and log the first 1-sentence take.
Double Feature
More Like This
Recommended titles paired with Ryu the Primitive Boy.
