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Honkai: Star Rail

Who is Raiden Bosenmori Mei?

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♦ Latest: Version 3.8 Update
♦ Phase 1: The Dahlia & Firefly
♦ Phase 2: Fugue & Lingsha
♦ Phase 3: Aglaea & Sunday
♦ Events: Chrysos Awoo Championship

Honkai Star Rail - Who is Raiden Bosenmori Mei

Raiden Bosenmori Mei is the true name of Acheron in Honkai: Star Rail. See what else was revealed about Acheron's lore during the 2.2 update here!

Who is Raiden Bosenmori Mei?

Acheron's True Name

Honkai Star Rail - Raiden Bosenmori Mei is Acheron

During the mission, And on the Eighth Day, Acheron reveals that her real name is Raiden Bosenmori Mei. This fully confirms that Acheron is an expy of Raiden Mei, a character from Hoyoverse's Honkai Impact 3rd including all the other references supporting it.

And on the Eighth Day Mission Guide

Differences With Raiden Mei in Honkai Impact 3rd

Honkai Star Rail - Raiden Mei and Acheron
While Acheron bears the same name as Raiden Mei from Honkai: Impact 3rd, both characters are entirely different from each other and are from two different worlds but with similar events taking place.

Raiden Mei from Honkai Impact 3rd helped Kiana defeat Kevin to save the world, while Acheron faced off against the Bearer of End by herself, and her world was eventually destroyed by IX.

Raiden Mei Callbacks from Honkai Impact 3rd

HSR - Raiden and Acheron Callbacks
If you're a long fan of the Honkai series, you will know that HoYoverse has placed a lot of references from Honkai Impact 3rd's Raiden Mei in Honkai: Star Rail.

One example can be found in Acheron's Myriad Celestia Trailer, where a part of the song Honkai World Diva can be heard.

A scene that plays out during the Animated Short: Graduation Trip, where Raiden Mei reaches out to Kiana, was also referenced in the Version 2.2's Trailblaze Mission, And on the Eight Day.

Raiden Bosenmori Mei Lore

Acheron is from the Izumo Planet

Honkai Star Rail - Raiden Bosenmori Mei in Izumo

The Kyoden: Cleave Across the Transient World trailer reveals that Acheron came from Izumo, one of two planets that orbited around a black sun referred to as the Shadow of IX. One day, Izumo became ravaged by Kami, monstrous beings who solely aim to kill all humans.

The people of Izumo fought back by forging powerful weapons known as the 12 Sentinels, but they eventually broke after many years of struggle. The remnants of these blades were forged into two new ones, Origin and End.

Became a Self-Annihilator and Emanator of Nihility

Honkai Star Rail - Raiden Bosenmori Mei Fighting the Kamigami

Acheron, as Raiden Bosenmori Mei, wielded Origin and became the sole survivor continuing to fight on Izumo. Upon gazing at the black sun, she realized that this endless battle was meaningless and became a Self-Annihilator who now takes on the name of Acheron.

Although Self-Annihilators tend to degrade or fade away over time, Acheron's strength instead awakened her power as an Emanator of Nihility. With this, she guides the departed souls who become lost in the sea of Nihility to their true afterlife.

Killed Duke Inferno to Get His Invitation

Honkai Star Rail - Acheron Kills Duke Inferno

In The Devil in Velvet, a cutscene reveals that Acheron killed Duke Inferno of the Annihilation Gang. Acheron wanted to get his invitation to Penacony's Charmony Festival and ultimately had to take him down due to his resistance.

The Devil in Velvet Mission Guide

Posed as a Galaxy Ranger to Fulfill a Promise

Honkai Star Rail - Tiernan Tells Acheron His Final Wish

Acheron wanted to reach out to an actual Galaxy Ranger, so she pretended to be one knowing their elusive nature. Just according to plan, Boothill boards the Astral Express to search for her during Bullet & Brain.

Here, Acheron reveals she ventured to Penacony as a Galaxy Ranger because she wanted to help Tiernan, the Nameless who helped the Galaxy Rangers fight Lord Ravager Zulo, return their relics, and fulfill his last wish of having someone offer flowers to his grave.

Honkai: Star Rail Related Guides

Honkai Star Rail - News and Game Info

Latest News and Updates

Latest News and Upcoming Content

Honkai: Star Rail Latest News
All Redeem Codes Version 3.8 Codes
Version 4.0 Banners Planarcadia Release Date
Warp Banner History Rerun Characters

Current Version News and Updates

Honkai Star Rail - Version 3.8

3.8 Banners and Release Date

Version 3.8 New Guides
Version 3.8 Livestream Version 3.8 Codes
The Dahlia Banner Brilliant Fixation
Bygone Reminiscence
Version 3.8 New Character
The Dahlia
Version 3.8 New Light Cone
Never Forget Her Flame
Version 3.8 Rerun Characters
Firefly Fugue
Lingsha Aglaea
Sunday
Version 3.8 Rerun Light Cones
Whereabouts Should Dreams Rest Long Road Leads Home
Scent Alone Stays True Time Woven Into Gold
A Grounded Ascent
Version 3.8 New Mission
Memories are the Prelude to Dreams
Version 3.8 New Map
Dream of Gnawing Oak
Version 3.8 New Events
Chrysos Awoo Championship Remnants of Twilight
Treasure Hunt 3.8 Gift of Odyssey
3.8 Realm of the Strange 3.8 Planar Fissure
3.8 Garden of Plenty
Version 3.8 New Boss
Harbinger of Death: Swarm Nightmare

Other News and Game Info

Honkai: Star Rail News and Game Info
List of EN and JP Voice Actors Ten Stonehearts and IPC Executives
Annihilation Gang Characters Xianzhou Wardance Characters
All Amphoreus Characters All Flame Chasers Expy Characters
System Requirements and File Size Honkai: Star Rail Available Platforms
PS5 Release Guide PlayStation Account Link Guide
PS4 Release Date Console Release Date
Nintendo Switch Release Date Global Release Date
Honkai Impact 3rd Returning Characters Differences to Genshin Impact

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