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Honkai: Star Rail

How to Get The Killer Is Not From This Game Achievement

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Honkai Star Rail - How to Get The Killer Is Not From This Game Achievement

The Killer Is Not From This Game is a hidden achievement that can be unlocked by helping Periphas discover what happened to his friends through a hidden mission in Honkai: Star Rail. See how to get it and its rewards for completion!

List of Contents

How to Get The Killer Is Not From This Game

Talk to Periphas in Murmuring Woods

HSR The Killer Is Not From This Game - Periphas Location

To get the The Killer Is Not From This Game hidden achievement, you need to start the Unnatural Death hidden mission by talking to Periphas at Murmuring Woods Grove of Epiphany F1.

You'll need to finish the Light Slips the Gate, Shadow Greets the Throne Trailblaze Mission for Periphas to show up along the path north of the Woving Trail Space Anchor.

Find Clues in the Grove

HSR The Killer Is Not From This Game - Help Periphas Investigate

Periphas will ask you to help in investigating what happened to his friends Nicomachus, Andreas, and Clio. He'll hand over some of their important belongings, which could be helpful in sensing what happened to them as you explore the Grove.

Investigate the Memory of Nicomachus

HSR The Killer Is Not From This Game - Nicomachus Memory

Teleport to the Serene Court of Learning Space Anchor and activate the nearby Fragment of Recollection to view the last moments of Nicomachus. After viewing the memory, you'll be teleported to Murmuring Woods F2 and receive Nicomachus' Work Permit.

Investigate the Memory of Andreas

HSR The Killer Is Not From This Game - Andreas Memory

At the next location, continue heading north and you'll eventually spot another Fragment of Recollection. Activate it to view the last memory of Andreas and get Andreas' Work Permit.

Investigate the Memory of Clio

HSR The Killer Is Not From This Game - Clio Memory

You'll be teleported again to another location. Continue northwards along the branch pathway and you'll find the next Fragment of Recollection on your right. Be careful of the enemies nearby. After witnessing Clio's last moments, you'll be teleported again and get Clio's Work Permit.

Investigate the Memory of the Flame Reaver

HSR The Killer Is Not From This Game - Flame Reaver Memory

At Murmuring Woods F4, there'll be one last Fragment of Recollection. Interact with the Memory of the Flame Reaver to conclude your investigation.

Submit the Clues to Periphas

HSR The Killer Is Not From This Game - Submit Clues to Periphas

Return to Periphas at Murmuring Woods F1 and submit the clues you've collected during your investigation. After discussing your findings with him, the quest will end and you'll unlock the achievement!

The Killer Is Not From This Game Rewards

Unnatural Death Mission Rewards

Mission Rewards
Star Rail - Stellar Jade Item Stellar Jade x10 Star Rail - Condensed Aether Item Condensed Aether x2 Star Rail - Credit Item Credit x5000

Completing the Unnatural Death hidden mission will earn you the rewards above!

Get Memory Crystal Shards

HSR The Killer Is Not From This Game - Memory Crystal Shards

You'll also receive 2 Memory Crystal Shards from completing the hidden mission. These can be used to exchange for special items at the Janus' Steed shop or to purchase hints on Creation Nymph locations!

How to Get and Use Memory Crystal Shards

Get the Achievement

Achievement & How to Get Reward
The Killer Is Not From This GameThe Killer Is Not From This Game (Hidden)
Help Periphas discover what happened to his friends
Honkai Star Rail - Stellar Jade x5

After helping Periphas discover what happened to his friends, you'll be rewarded with The Killer Is Not From This Game Achievement! For other Hidden Missions, check the guide below.

All Hidden Missions Guide

Honkai: Star Rail Related Guides

Honkai Star Rail - Missions

All Missions and Mission Types

All Hidden Mission Guides

Hidden Mission Guides
'39 A Cup of "Coffee" A Midsummer Night's Dream
A Star is Born A Steal of a Deal A Strange Voice
Adios, Bottle All is Fair in Love and War All-Channel Resonance
An Odd Meeting Place Balloons Towards Tomorrow Billboard Investigator
Bodybuilder SoulGlad Bronya's Desk Cast Off Worldly Woes
Chirping Secret - Divine Enigma Chirping Secret - Melodic Chimes of The Ancients Chirping Secret - Rainbow's End
Chirping Secret - The Unseen Steps Chirping Secret - The Westward Ordeal Chirping Secret: Blemish of Light
Chirping Secret: Fleetfoot Paradox Chirping Secret: Golden Journey City Vagrant
Clockwork: Arturo Clockwork: Garcia Clockwork: Mr. McCoy
Clockwork: Oksana Cold Dragon Young Disposable
Divination Shop Don't Try This at Home Door to a New World
Dragon in Stealth Draw It Yourself, Pen! Drunk “Little Bird”
Eerie Tales Emanator of Trashcans Embrace Your Long Fingers
Escapee Locations Fair and Square False Memories
Family Cinema Fast and Family Fast Are Two Seals
First Things First From Hero to Zero Furiae... Outworld!?
Galactic Doppelbatter Ghost Actor Quest Goblet of Fire
Hidden Corner Honest Abe Host's Choice
Hound Statues I Already Built My Own City Immortal in a Vase
Insatiable Is This Real? Jingle Bells
Jurassic Garden Just a Number Just One Passing Martial Tutor
Kidnapping for Purchase Lā Lá Lǎ Là Land Learned a Lesson...?
Little Robots LuckEx Manhole
Melancholic Subdual Memory Bubble Mole's Hide and Seek
Moral Higher Ground Natural Immunity Non-Stop
Origami Cranes Oro, Ace Gambler Outlander's Anthem
Peculiar Glaive Penacony Car Dealer Penacony Grand Theater Robin
Pom-Pom's Troubles Portrait of Souls Prison Visitation
Razor Cake Rightful Rights Society Rock, Paper, Scissors
Searching for Mother Self-Funded Merch Seven Errors of Cycranes
Seven Flowers on a Vine Shadow Guard's Creed Shattered Curio
Sneaky Cycrane Sowing the Sun Spamming SPAM
Starlit Sway in Violet Haze Starskiff Superstition Steps Echo in the Valley
Strange Voice Student Club Staff Members Sunday Night Live
Suspicious Scroll Terrific Mara-Struck and Where to Find Them That Is One Big Balloon
The Boulder Town Competitive Eater The Curtain Never Falls on Balloons The Door is Tougher
The Evil Within The First Step of the Future The Killer Is Not From This Game
The Legitimate Don Quixote The Mandela Effect The Red Flower and the Six Grains
The Strange Plant The Sublime Object of Trade Trashy Humor
Treasure Chest Guy Treasure Chest Magician Utter Horror Story
Wanted Posters Wardance 21-Gun Salute We Work in the Dark to Serve the Light
Welcome to Aedes Elysiae Welcome to the Classroom of Academic Freedom What Goes Around, Comes Around
When Breath Becomes Air Winter City Trap Woodland Gathering of the Fae
World Beyond the Cave Xunsang's Quest Yesterday Once More
Yet the Other Ships Passed Safely

All Hidden Mission Guides

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Honkai: Star Rail Walkthrough Team
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