CosmicShell21
About CosmicShell21
CosmicShell21 has become a fan-favorite author in the Chainsaw Man fandom, writing stories that are praised for their emotional authenticity and creative world-building.
Author Statistics
Featured Works
The most popular works by CosmicShell21, ranked by kudos.
Skyfall
Chainsaw Man · 277,277 words
A Chainsaw Man story exploring themes of pining and secret relationship.
In the Burning Sky
Chainsaw Man · 268,270 words
A Chainsaw Man story exploring themes of friends to lovers and coffee shop au.
Take the Glass
Demon Slayer · Tomioka Giyuu/Kamado Tanjirou · 272,481 words
Tomioka Giyuu keeps a secret that could change everything. When Kamado Tanjirou stumbles upon the truth, the fallout threatens to destroy them both.
The Fallen Shadow
Chainsaw Man · 213,515 words
A Chainsaw Man story exploring themes of mutual pining and werewolf au.
Flamefall
Demon Slayer · Tomioka Giyuu/Kamado Tanjirou · 38,280 words
Tomioka Giyuu makes a deal with forces they don't fully understand. The price? Something they didn't realize they'd miss until Kamado Tanjirou is gone.
Trending Works
Recently updated and actively engaging works by CosmicShell21.
The Bitter Ocean
Demon Slayer
In a Demon Slayer coffee shop AU, Tomioka Giyuu is a regular who always orders the same thing, and Kamado Tanjirou is the barista who notices.
The Fallen Shadow
Chainsaw Man
A Chainsaw Man story exploring themes of mutual pining and werewolf au.
In the Burning Sky
Chainsaw Man
A Chainsaw Man story exploring themes of friends to lovers and coffee shop au.
All Works by CosmicShell21
Skyfall
Complete MatureChainsaw Man
277,277 words · 18h 29m read · Published 2016-03-15 · Updated 2017-12-01
A Chainsaw Man story exploring themes of pining and secret relationship.
In the Burning Sky
Complete ExplicitChainsaw Man
268,270 words · 17h 53m read · Published 2021-06-20 · Updated 2023-06-26
A Chainsaw Man story exploring themes of friends to lovers and coffee shop au.
Take the Glass
Ongoing ExplicitDemon Slayer · Tomioka Giyuu/Kamado Tanjirou
272,481 words · 18h 10m read · Published 2019-09-26 · Updated 2021-05-06
Tomioka Giyuu keeps a secret that could change everything. When Kamado Tanjirou stumbles upon the truth, the fallout threatens to destroy them both.
The Fallen Shadow
Complete ExplicitChainsaw Man
213,515 words · 14h 14m read · Published 2022-09-23 · Updated 2024-03-25
A Chainsaw Man story exploring themes of mutual pining and werewolf au.
Flamefall
Complete ExplicitDemon Slayer · Tomioka Giyuu/Kamado Tanjirou
38,280 words · 2h 33m read · Published 2016-10-15 · Updated 2016-11-18
Tomioka Giyuu makes a deal with forces they don't fully understand. The price? Something they didn't realize they'd miss until Kamado Tanjirou is gone.
The Bitter Ocean
Complete Teen And Up AudiencesDemon Slayer · Tomioka Giyuu/Kamado Tanjirou
19,840 words · 1h 19m read · Published 2024-08-18 · Updated 2025-09-09
In a Demon Slayer coffee shop AU, Tomioka Giyuu is a regular who always orders the same thing, and Kamado Tanjirou is the barista who notices.
Common Tropes
Frequently Asked Questions
Who is CosmicShell21 on AO3?
CosmicShell21 has become a fan-favorite author in the Chainsaw Man fandom, writing stories that are praised for their emotional authenticity and creative world-building.
How many fanfics has CosmicShell21 written?
CosmicShell21 has written 8 works totaling 1.4M words, with 331k total kudos across all their fics.
What is CosmicShell21's most popular fanfic?
CosmicShell21's most popular work is "Skyfall" with 94k kudos and 39k bookmarks. It's a 277,277 word Chainsaw Man fic.
What fandoms does CosmicShell21 write for?
CosmicShell21 writes for Chainsaw Man, Demon Slayer. Their primary fandom is Chainsaw Man.
Where can I read CosmicShell21's fanfiction?
You can read CosmicShell21's works on Archive of Our Own (AO3). Download Fanfict Reader for iOS for the best mobile reading experience with offline access.
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