Cottelle
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It was a heatwave, so what better way than to end a long day of work with a boat trip while the sun sets? All three of them never knew what fate was actually awaiting them, and unknowingly walked into an adventure that would change all of their lives. Underneath the full moon in the crater of a volcano, they never knew that they would be bestowed a blessing; or in hindsight, a curse?
March, Stelle and Dan Heng have to find out how to balance their new lives while keeping their secrets without any clue what happened, nor what exactly changed. How difficult can keeping secrets really be when you're one drop of water away from spilling everything? Will the shared secret between them drive them closer or actually apart?
OR
Astral Express trio in a H2O inspired / merpeople AU + more modern setting than the canon universe.
(can be read without knowledge of H2O) -
five times March 7th saw something suspicious + one time she found out what it was by Cottelle
Fandoms: 崩坏：星穹铁道 | Honkai: Star Rail (Video Game)
28 Sep 2025
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"It wasn’t like March was a star in "remembering" trivial things that would happen during her travels. Most of the times, she would just shrug them off and act as if she hadn’t seen anything, practically forgetting the small details.
She would leave it up to Dan Heng to remember the details, while she kept taking pictures of sights that were aesthetically pleasing and worth remembering for decades. But if something were to come back more than 3 times, even she would notice it eventually and know something was off. But she didn’t know *what* it was.
That was, until she got to Amphoreus."
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What Remained of the World by Cottelle
Fandoms: 崩坏：星穹铁道 | Honkai: Star Rail (Video Game)
22 Jan 2025
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When two researchers found a rather particular test subject and started investigation the matter, unforeseen disasters struck. A new type of disease, Atrophy, was found and this was detrimental to humanity. When one of the test subjects broke out, the end of humanity keeps on nearing, with the contagious virus being spread faster than processed. How will the last survivors live in this barren wasteland?
OR
HSR Zombie Apocalypse AU with various characters and dynamics
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- Captivated by the sweet voice of the angel on the stage, the girl looks over at the stage. Gallagher notices this and watches with her. “Beautiful, huh?”
“Yes… Her voice is exquisite… Like an angel,” the girl takes another sip from her drink, before turning to Gallagher, “Who is she, if I might ask?”
“That girl over there on the stage? That’s Robin. She’s a singer from the Family, a Halovian.”
The silver-blonde haired girl’s gaze fell on the stage again as the songbird sang her lyrics. -
OR
Enchanted by the song of a singer she had never heard of before, Firefly becomes a fan of a singer in the land she's visiting, which wasn't on her script.
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A Love, Unable To Spread Its Wings by Cottelle
Fandoms: 崩坏：星穹铁道 | Honkai: Star Rail (Video Game)
04 Jan 2025
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ੈ✩‧₊˚ How will Robin and Firefly navigate themselves through the countless of balls, constantly being kept track of? Captivated by each other, yet forbidden to love. They both know the consequences if they get caught together, yet their love is strong. But, is it strong enough to withstand the gazes of the Ton?
OR
A Robin x Firefly fanfic inspired by Bridgerton!
Recent bookmarks
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counting backwards by lee (acrawlingdove)
Fandoms: 崩坏：星穹铁道 | Honkai: Star Rail (Video Game)
11 Feb 2026
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“Um, have you ever thought about the fact that he might be in love with you?”
Stelle froze. In fact, the entire party car seemed to stop, the air growing thick with expectation and denied realization, the words permeating every part of her brain. Even Sunday glanced over from where he sat further down the bar.
A snap of an imaginary finger, and Stelle’s soul returned to her body.
“I—I’m sorry, what?”
(or, Dan Heng is in love with Stelle. Stelle might love him too. But she refuses to accept that it’s actually possible, and it’s only after she figures some things out first that she allows it to happen, and even finds the courage to confess her reciprocation.)
Bookmarked by Cottelle
09 Feb 2026
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Welt huffed, “What can we even do about it? We’re not their parents, Himeko.” He gently reminded her.
“But we’re all they have,” She insisted, taking her cup of coffee and bringing it up to her lips, “What else can we do other than try to be there for them?”
Another sigh, “I… I guess so. I suppose there is no harm in hugging them every once in a while.”
Himeko let out a giggle, “Ah, Welt, you act as if you don’t adore those three. You and I know that you love them as if they were your own.”
Four times Himeko and Welt noticed something was wrong with the other members of the Astral Express, and how they helped them feel a bit more at ease.
Series
- Part 1 of Astral Express (Found) Family
Bookmarked by Cottelle
26 Jan 2026
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Dan Heng accepts a job at the prestigious Herta Marine Center and finds himself back in the quiet beachside town of Astral Cove where he grew up. Of course, some things never change-- and before long he finds himself roped into another one of childhood best friend March's questionable adventures.
When a poorly-planned trip to Mara Island strands Dan Heng, March and new friend Stelle in a mysterious volcanic pool under a full moon, their lives are forever changed. Can the three solve the mystery of their new mermaid powers, all while staying hidden from the prying eyes of the Herta Center?
Or,
The Astral Express trio turn into mermaids every time they touch water. It goes just about as well as you'd expect.
Bookmarked by Cottelle
19 Jan 2026
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growing wings from clipped feathers (a team effort) by IcedCaramelCake, lucky_orange
Fandoms: 崩坏：星穹铁道 | Honkai: Star Rail (Video Game)
10 Sep 2025
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“You’re not a bird, Sunday,” Mr Yang breaks the silence. Sunday’s eyes flick to him just in time to see him shake his head, his brow furrowed. “Nor are you flightless.”
“Aren’t I?” he retorts. It’s too late to back out now that he’s started the conversation, now that he’s laying himself bare in front of the one person he respects most on this train. “What is it that differentiates me from an injured dove, Mr. Yang? My body might be fine, but to say the same of my mind –”
“You’re not an injured dove either,” Mr. Yang cuts in, firm. Final. His gaze lifts from the tea, eyes blazing with something Sunday can’t name. “And even if you were, you would’ve gotten better with help.”
Or: Five times Sunday floundered while trying to find his place on the Astral Express and the one time he felt right at home.
Bookmarked by Cottelle
07 Oct 2025
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Unsteady Hands by princesscas for toastbunny
Fandoms: 崩坏：星穹铁道 | Honkai: Star Rail (Video Game)
29 Sep 2025
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Summary
March can change pictures from inside the camera, so she becomes part of the Amphoreus trailblazing expedition alongside her friends.
- Language:
- English
- Words:
- 3,228
- Chapters:
- 1/1
- Collections:
- 1
- Comments:
- 74
- Kudos:
- 456
- Bookmarks:
- 78
- Hits:
- 2,037
Bookmarked by Cottelle
30 Sep 2025