archytele The Vault
Season guide

Unnatural: Season 1

10 episodes Premiered Jan 12, 2018 Updated Jul 21, 2026
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Season 1 Episodes

Episode Guide

🛡️ SPOILER SHIELD

Season 1 Progress Shield

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Binge Efficiency Engine

Season 1: Filler vs. Essential Canon

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

30%
70%
Mytharc (3): Crucial lore & season climaxes
Core (7): Character development & subplots
Side Quest (0): Standalone / filler
S1·E1 Mytharc

Nameless Poison

Jan 12, 2018 · 59 min

A man died suddenly. His parents ask UDI for help. It is rumored that his girlfriends, a researcher, created a poison to kill him.

S1·E2 Core

Case of the Suicidal Person

Jan 19, 2018 · 45 min

A family committed charcoal burning suicide. However, it turns out that one of the bodies died from hypothermia and was found a piece of paper in her stomach.

S1·E3 Core

Unscheduled Witness

Jan 26, 2018 · 45 min

Mikoto Misumi is asked to testify in a trial for the prosecution. However, pretty soon she discovers inconsistencies in the case.

S1·E4 Core

For Whom Do We Work

Feb 2, 2018 · 45 min

Misumi's mother comes to her to ask for help in a case where a man died in a road accident.

S1·E5 Core

Retaliation for Death

Feb 9, 2018 · 45 min

Misumi's team works to find the truth behind an apparent drowning accident.

S1·E6 Core

We're not Friends

Feb 16, 2018 · 45 min

When Yuko gets entangled in a murder investigation, the UDI department steps in to help her.

S1·E7 Core

Murder Game

Feb 23, 2018 · 45 min

A high school student defies Mikoto Misumi to discover the truth behind the death of another student.

S1·E8 Core

My Distant Home

Mar 2, 2018 · 45 min

UDI has to discover the identities of the victims of a fire that could have been an arson.

S1·E9 Mytharc

Signs of the Enemy's Presence

Mar 9, 2018 · 45 min

UDI investigates the death of a young woman found in a suitcase, a case that may be connected to the death of Nakado's girlfriend 10 years ago.

S1·E10 Mytharc

Journey's End

Mar 16, 2018 · 54 min

After the fallout of the previous episode, UDI has to find proof of the involvement of Takase in the deaths of 26 people.

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