Season 1
1999 · 26 episodes · 10h 50m in all
Follow 487 stranded students forced to build a society aboard a spaceship after a disaster. Over time, their journey evolves from a survival drama into a psychological breakdown of leadership, power, and human behavior.

Episodes

1. The Forthcoming Time
6 Oct 1999 · 25 min
Students train at the Liebe Delta station; tensions and relationships are introduced before disaster strikes.

2. Unnecessary Things
13 Oct 1999 · 25 min
A sabotage incident begins to destabilize the station, causing confusion and mistrust.

3. Beyond the Vast Sea
20 Oct 1999 · 25 min
The crisis escalates as the station is dragged toward the dangerous “Sea of Geduld.”

4. The Ring of Ryvius
27 Oct 1999 · 25 min
The station is destroyed; surviving students escape aboard the hidden spaceship Ryvius, now stranded without adults.

5. A Little Harmony
3 Nov 1999 · 25 min
Students begin forming a fragile society aboard the Ryvius.

6. My Moment
10 Nov 1999 · 25 min
A coup led by Blue takes control; the Vital Guarder weapon system is discovered.

7. The Changing Times
17 Nov 1999 · 25 min
Power struggles deepen as leadership fractures and factions form.

8. We Didn't Know Anything
24 Nov 1999 · 25 min
The crew struggles to understand the ship and their situation.

9. Vital Guarder
1 Dec 1999 · 25 min
The giant weapon is activated as external threats emerge.

10. Even If You Can't Believe
8 Dec 1999 · 25 min
The Ryvius is attacked; it fights back but becomes a target of authorities and is forced to flee.

11. When the Party's Over
15 Dec 1999 · 25 min
After a brief celebration, the crew are labeled terrorists; rationing and inequality begin.

12. Whereabouts of the Future
22 Dec 1999 · 25 min
The crew debates their direction and survival strategy.

13. If Only to Meet
29 Dec 1999 · 25 min
Personal relationships intensify amid isolation.

14. To Be Too Conscious
5 Jan 2000 · 25 min
Class divisions and resentment worsen onboard.

15. Swept Away
12 Jan 2000 · 25 min
The Ryvius drifts further from help; morale declines.

16. Deforming World
19 Jan 2000 · 25 min
The ship’s internal society becomes increasingly unstable.

17. Free Order
26 Jan 2000 · 25 min
Authority structures begin to collapse.

18. Incomprehensible
2 Feb 2000 · 25 min
The survivors reflect on their failures and misunderstandings.

19. Smiling With You
9 Feb 2000 · 25 min
Moments of humanity appear amid growing chaos.

20. Things You Can't Give Up
16 Feb 2000 · 25 min
Ikumi seizes control of the ship using the Vital Guarder, enforcing strict rule.

21. We Don't Need Tomorrow
23 Feb 2000 · 25 min
The crew becomes divided under harsh leadership.

22. In Order to Survive
1 Mar 2000 · 25 min
Martial law intensifies as survival becomes the only priority.

23. Torn Past
8 Mar 2000 · 25 min
Characters confront their past actions and guilt.

24. Kouji Aiba
15 Mar 2000 · 25 min
Kouji challenges Ikumi’s rule as outside forces close in.

25. In Order to Stay as Myself
22 Mar 2000 · 25 min
Personal identity and choices come to the forefront.

26. Tomorrow
29 Mar 2000 · 25 min
With the Final battle and resolution, survival comes at a cost. The remaining crew moves toward an uncertain future.
Infinite Ryvius Season 1: quick answers
How many episodes are in Infinite Ryvius Season 1?
Season 1 of Infinite Ryvius has 26 episodes, about 11 hours in total.
When did Infinite Ryvius Season 1 come out?
Season 1 premiered on 6 Oct 1999.