cosmic_zero
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Recent works
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Summary
Kuzuryuu usually turns to alcohol as an escape, as a way of fuelling his Despair. He delves into the hazy sensations and lounges around, pushing his duties onto everyone else. But this time, instead of being zoned out of his mind, he finds clarity.
He seeks Peko to try and break him out of it, only to find her going through it as well.
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closedistanceness. by cosmic_zero, SHIZUHARAPOCALPYSE (cosmic_zero)
Fandoms: The Hundred Line -Last Defense Academy- (Video Game)
22 Jan 2026
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Summary
[S.F. Spoilers (Ending 55)]
Hiruko wakes up in a [ ], IV drip fixed in her arm. She’s made it to the Artificial Satellite, but she doesn’t know that, not fully.
All she knows is her congealed emotions, the burning embers of her love. And the deep thirst sunken into her body.
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prazosin lullaby. by cosmic_zero, SHIZUHARAPOCALPYSE (cosmic_zero)
Fandoms: The Hundred Line -Last Defense Academy- (Video Game)
23 Oct 2025
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Summary
[S.F. Spoilers]
Sometimes, Hiruko gets nightmares. But sometimes she gets other kinds of troublesome dreams.
(The falling bedsheets sigh against her skin, as she presses a hand to his chest. He's always just out of reach.)
- Language:
- English
- Words:
- 434
- Chapters:
- 1/1
- Kudos:
- 21
- Hits:
- 234
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heat queen by cosmic_zero, SHIZUHARAPOCALPYSE (cosmic_zero)
Fandoms: The Hundred Line -Last Defense Academy- (Video Game)
22 Oct 2025
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Summary
Every time Takumi touches Hiruko, her body is pleasantly warm.
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Flufftober 2025 day 22: Polar Opposites
Series
- Part 9 of cosmic's flufftober 2025
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the fools love makes by cosmic_zero, SHIZUHARAPOCALPYSE (cosmic_zero)
Fandoms: The Hundred Line -Last Defense Academy- (Video Game)
20 Oct 2025
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Summary
Takumi's not entirely sure how he got himself into this. One second he'd befriended the icy class president, and the next, she'd asked him to appear as her boyfriend. Before his jaw hit the floor, she clarified: fake boyfriend.
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Flufftober 2025 day 20: Fake Relationship
Series
- Part 7 of cosmic's flufftober 2025
Recent series
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author's favourite works by cosmic_zero, pekoposting (cosmic_zero), SHIZUHARAPOCALPYSE (cosmic_zero)
Fandom Dangan Ronpa Series, 超探偵事件簿 レインコード | Master Detective Archives: RAIN CODE (Video Game)
13 Feb 2025
Summary
from 2024 onwards (i.e. the vast majority of my fic catalogue), i usually have to be very happy with a work to publish it. or at the very least i think there's at least 1 good concept in it
but i am also aware that i can write fast, and upload a lot. so, 'tis an attempt to cut them down to the ones i like the absolutely most to try make my fic catalogue a bit more approachable
(biased towards The Hundred Line -Last Defense Academy- because that's my hyperfixation rn)
- Words:
- 19,434
- Works:
- 10
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cosmic's flufftober 2025 by cosmic_zero, SHIZUHARAPOCALPYSE (cosmic_zero)
Fandom The Hundred Line -Last Defense Academy- (Video Game)
22 Oct 2025
Summary
here be fluff. less so than last year because i've had writer's block for months now. sadge
- Words:
- 6,607
- Works:
- 9
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zero's Femslash February 2025 by cosmic_zero, pekoposting (cosmic_zero)
Fandom Dangan Ronpa Series
21 Feb 2025
Summary
Using multiple different promptlists, but primarily the femslash bingo one done by @femslash-february on tumblr and the danganronpa-specific one done by @danggirlronpa. also on tumblr
1. forbidden (pekonia)
2. talent (pekonia)
3. deadly life (pekonia)
4. ponytails (peko x sakura)
5. ocean (pekonia)- Words:
- 3,357
- Works:
- 5
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cosmic's flufftober 2024 by cosmic_zero, pekoposting (cosmic_zero)
Fandom Dangan Ronpa Series
31 Oct 2024
Summary
welcome to flufftober, where i will post something fluffy (almost) every day of october! and spam the pekoyama tag in the process!
(bonus if i tag regular ol' hope's peak fics as non-despair.)prompt list is here
1. lost pet meet cute
2. "left. other left!"
3. favourite scent
4. bonus 1: "i've got you"
5. pinecone
6. mistaken identity
7. hoodie weather
8. chopping and piling wood
9. "don't do that!" - "but..."
10. bet
11. bonus 5: porch swing
13. hidden room
14. fantasy au
15. "what are you wearing?" - "it's laundry day!"
16. yes, no
17. only one bed
18. bonus 10: rejected, betrayed, exiled, left behind
19. yarn
20. paw
22. bonus 9: suddenly severed communication
23. stormy night
24. comfort food
25. haunted house
26. "i can't find it"
27. afternoon stroll + bonus 2: rainy day
28. lucky charm
29. bonus 8: written but never sent
30. "forever?"
31. make a wish- Words:
- 30,696
- Works:
- 29
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Pekoyama additional tags focus by cosmic_zero, pekoposting (cosmic_zero)
Fandom Dangan Ronpa Series
08 Nov 2024
Summary
My next endeavour into scraping Pekoyama for every ounce of fic ideas I can. (Don't worry, I'm nowhere near running out of ideas. Unless you hate Pekoyama. In which case, worry.)
1. Trans Pekoyama Peko / Nonbinary Pekoyama Peko
To do: Despair Pekoyama Peko, Bisexual Pekoyama Peko, Background Pekoyama Peko, Mastermind Pekoyama Peko
To possibly do: Kiyotaka Ishimaru and Pekoyama Peko are siblings
- Words:
- 1,531
- Works:
- 1
Recent bookmarks
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Tags
Summary
For all that Peko did every damn thing he told her to, it really felt like she didn't listen to him half the time.
Bookmarked by pekoposting (cosmic_zero)
03 Apr 2026
Bookmarker's Notes
ahhh taps into one of the things i think is easiest to miss about peko's character; she will prioritise keeping fuyuhiko safe in a dire situation over actually obeying his orders. so yeah, real nice
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Summary
Now that the case is closed, Hina has to confront herself on her actions up until now.
Series
- Part 2 of 日就月将 / Jitsushu Getsusho -Reprise-
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Summary
Huge nirvanA Initiative spoilers for the end of the game!
Mizuki and Bibi stay up late at night and talk about themselves.
Bookmarked by cosmic_zero
15 Mar 2026
Bookmarker's Notes
[ai the somnium files/ai: nirvanA Initiative spoilers]
auu cute
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Tags
Summary
- she did for you."
shizue kuranushi, through the years.
Bookmarked by cosmic_zero
14 Mar 2026
Bookmarker's Notes
[ai: the somnium files spoilers]
ohhh so awesomesauce. i needed this
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an empty vessel, running over by Lyre (Lyrecho)
Fandoms: The Hundred Line -Last Defense Academy- (Video Game)
05 Oct 2025
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Summary
Takumi hasn't been acting like himself, lately--he's furtive, solitary, and spending almost all his time beyond the Wall of Flames.
Nozomi's sure that something's not quite right with him. And when she brings it up to Hiruko, she determines that they're going to find out just what is going on.
Bookmarked by cosmic_zero
07 Oct 2025
Bookmarker's Notes
[S.F. Route Spoilers]
certified banger. as someone who does not feel confident in their deeper understanding of nozomi, this was very illuminating. and damn does it get hiruko so right too
minor spoilers for da fic:
the part where she starts getting hiruko's memories back is so fuckin well done. AND YESS I WAS HOPING THE BLOOD DRINKING TAG WAS FOR THE TWO OF THEM