archytele The Vault
Season guide

GNOSIA: Season 1

21 episodes Premiered Oct 12, 2025 Updated Oct 11, 2026
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Season 1 Episodes

Episode Guide

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Season 1: Filler vs. Essential Canon

Filter episodes by narrative weight. Focus on essential mytharc and skip standalone side quests.

24%
76%
Mytharc (5): Crucial lore & season climaxes
Core (16): Character development & subplots
Side Quest (0): Standalone / filler
S1·E1 Mytharc

Starting Point

Oct 12, 2025 · 27 min

Yuri, who has lost their memory, wakes up aboard the Interstellar Cruiser D.Q.O. They are taken by Setsu to participate in a meeting to identify the "Gnosia," a being that attacks

S1·E2 Core

Loops

Oct 19, 2025 · 27 min

Yuri, who looped back to the first day, attends the meeting knowing who the Gnosia is. Yuri tries to cast suspicion on SQ, but the discussion doesn't progress as expected...?

S1·E3 Core

New Crew Members

Oct 26, 2025 · 26 min

Shigemichi and Stella join the group, and a meeting is held with seven people. During the meeting, Yuri uses their intuition to identify the Gnosia, but they struggle to convince t

S1·E4 Core

Silver Key

Nov 2, 2025 · 24 min

Despite identifying the Gnosia and surviving, Yuri finds themself back at the first day in a daze, when a person with an unusual presence, Yuriko, appears before them. She seems to

S1·E5 Core

Wild Intuition

Nov 9, 2025 · 26 min

New crew members Comet and Chipie join the meeting. Two of the crew claim to be engineers, but Racio argues against voting for them, resulting in the votes going to...?

S1·E6 Core

Nostalgic Flowers

Nov 16, 2025 · 26 min

Yuri attends the meeting in a new role as the "Guardian Angel." With Jonas and Kukrushka joining, the meeting now has 13 people, and as the situation becomes chaotic, one crew memb

S1·E7 Core

Understand?

Nov 23, 2025 · 24 min

Otome and Remnan join in and the meeting is about to begin, but the other new crew member, Sha-Ming, refuses to come out of his room. Meanwhile, Shigemichi begins to talk about his

S1·E8 Core

Guard Duty

Nov 30, 2025 · 24 min

Remnan and Kukrushka step forward as "Guard Duty," a role that confirms they are human. As the number of positions increases and the meeting becomes more complicated, Sha-Ming, who

S1·E9 Core

World of Gnosia

Dec 7, 2025 · 25 min

Yuri awakens as a Gnosia. Though they feel hesitant about deceiving their fellow crew members, they are touched by the feelings of Comet, who shares their position, and resolve to

S1·E10 Mytharc

Citizen Slime

Dec 14, 2025 · 24 min

Yuri, who has looped once again, is astonished by their new appearance. Amidst this, the meeting is postponed due to Sha-Ming's absence, and Raqio reveals the secret of the Silver

S1·E11 Mytharc

511

Dec 21, 2025 · 26 min

Upon waking up, Yuri finds themself in a loop where they and SQ are on Guard Duty. Knowing that they are both human, the two grow closer, and eventually SQ reveals her true "identi

S1·E12 Core

Allacosia

Dec 28, 2025 · 24 min

Gina, who intensely dislikes lying and deceiving others, is confided in about the loops by Yuri. Recalling a painful past, she expresses her fears and resistance toward becoming a

S1·E13 Core

Interlude

Jan 11, 2026 · 25 min

Before the meeting, Setsu loses consciousness and is taken to the Sickbay. As they share the information they have acquired, Yuri suggests that Setsu, who appears exhausted from ha

S1·E14 Core

15-Person Meeting

Jan 18, 2026 · 25 min

"If you survive this loop, I'll tell you everything." Yuri, presented with a condition by Yuriko, attends a meeting where all 15 crew members are gathered. However, once the meetin

S1·E15 Core

The Final Problem

Jan 25, 2026 · 25 min

Raqio, who was identified as a Gnosia by the Engineer, Yuri, claims innocence based on a certain action. The emergence of an AC Follower throws the meeting into chaos, and Yuri is

S1·E16 Core

Truth

Feb 1, 2026 · 24 min

When Yuri awakens, it's in a world line where the ship has escaped Gnosia contamination. As Yuri is bewildered by Kukrushka's implication of "the end of the universe," an alarm bla

S1·E17 Core

Bug

Feb 8, 2026 · 24 min

Yuri learns the truth: that they are a "Bug" that shouldn't exist. They struggle to escape the time loop and the cosmic collapse caused by their dual existence, but...?

S1·E18 Core

A World With a Future

Feb 15, 2026 · 27 min

Yuri awakens on "DAY 0," the day before the loop they always experience and before escaping Liu-An. They meet Setsu there, but Setsu seems unaware of the Silver Key or the loops...

S1·E19 Core

Epilogue

Mar 1, 2026

Yuri has escaped the loop, but the crew members have lost all memory of Setsu. On the planet where they land, Yuri follows Setsu's traces, only to be confronted with the harsh fact

S1·E20 Mytharc

To the World of Stars

Mar 8, 2026

In order to end Setsu's loop, Yuri obtains Raqio's "Silver Key." As Yuri tries to host the key once again, Raqio calls out to them.

S1·E21 Mytharc

End Point and Starting Point

Mar 15, 2026

Yuri reunites with Setsu on the other side of the dimensional door. They find themselves in the world line before they received the Silver Key that first awakened them. And so, the

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