1 - 20 of 46 Works in Sunday is Down Bad (Honkai: Star Rail)
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The Thorns To My Rose by barbedwirebitchez
Fandoms: 崩坏：星穹铁道 | Honkai: Star Rail (Video Game)
18 Sep 2025
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After being excommunicated, Sunday starts a new life in a quiet little town. The rose bushes on his new property catch his eye, but not knowing anything about flowers, he decides to go to the local florist for some advice.
And the local florist is absolutely gorgeous.
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Turn Off The Camera For Me by saeinkin
Fandoms: 崩坏：星穹铁道 | Honkai: Star Rail (Video Game)
28 Aug 2025
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“I might quit,” Anaxa spoke up. He used his shoe to get underneath the opening of the other’s trousers, teasing Sunday by brushing his skin ever so lightly. The Halovain became prominently flushed by a simple gesture, which Anaxa loved poking fun at. It's less likely that this Halovian would dare to take advantage of him. Looking into the brightened eyes peeking from the bed of feathers, the green-haired man leaned over and whispered, “On one condition.”
Sunday’s wings spread out with great eagerness, a small smile on his lips as he brought himself closer, “Really? I'd do anything!”
Anaxa was betting on that.
•••Sunday found out Anaxa was a camboy and insisted he quit that job. Sure, Anaxa could but he never liked doing it the easy way.
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Sunday takes advantage of being a guest aboard the Astral Express.
Series
- Part 2 of Free Use of the Astral Express
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a silent desire in melody sung by Anonymous
Fandoms: 崩坏：星穹铁道 | Honkai: Star Rail (Video Game)
23 Aug 2025
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Robins scent, the flesh of her thighs, her shiny, periwinkle colored hair, her smooth skin, her enchanting eyes—she’s so beautiful. His pride and joy, the object of all of his affections and fantasies.
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We are (not) meant to be. by talilaali
Fandoms: 崩坏：星穹铁道 | Honkai: Star Rail (Video Game)
21 Aug 2025
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Sunday is not good for Anaxagoras. He couldn't give the scholar everything he deserved. He was far from an angel, he was disaster, he was pain. They were never meant to be together. And yet, he never stopped the one that started everything.
#sunaxaweek - day 3: dancing in rain.
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thorns and threads, gloriously golden by TrueHeart_0922
Fandoms: 崩坏：星穹铁道 | Honkai: Star Rail (Video Game)
12 Aug 2025
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After another tough fight, Aglaea gently used her threads to make the angel-winged man face her. She had only a faint yet wicked grin, saying with her glorious accent, “Good work out there, boy.”
She then walks off, that confident and steady stride in her step, as he can only stare at her for a few moments. He clears his throat and leaves, trying to distract himself.
To no avail, of course.
...Which leads to Sunday seeking help from the one person who's been around since the start of everything.
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the gravity of caring by ClockworkTiger
Fandoms: 崩坏：星穹铁道 | Honkai: Star Rail (Video Game)
10 Aug 2025
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Welt stands there for a moment and stares at him, chewing his lower lip as if warring with himself. A bead of sweat runs down his temple to curve along his high cheekbone. “I—“ He takes a deep breath, winces, the lets it out in a sigh. His voice drops, suddenly, still strained but somehow softer and more hesitant. “You made me promise you something, a few days ago,” he murmurs.
...
He isn't in trouble, Sunday realizes in a burst of clarity. Welt isn't angry with him. He's not angry at all.
Welt is in pain.
*
Sunday helps care for a reluctant Welt. He's not prepared for just what that entails.
(a sequel to of scars and being seen)
Series
- Part 2 of the weight of all the world
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Palm pressed against the cool glass stretching over the large windows in the Parlor Car, she watched the sunset-rust nebula swirling over the endless inky backdrop in tendrils, its living, breathing, colorful clouds colliding in a never-ending cosmic dance. If she closed her eyes, she could imagine a star whale piercing through, scattering them in its wake. Like watercolor flowers blooming on water. Or startled birds.
A paper kite.
Stelle never saw herself as anything but a paper kite.
—Singularity
[n.] Regions of space where the density of matter, or the curvature of spacetime, becomes infinite. In such locales, the standard concepts of space and time cease to have any meaning. -
Breaking a Virgin (the actual version) by fgnefgernz
Fandoms: 崩坏：星穹铁道 | Honkai: Star Rail (Video Game)
29 Jul 2025
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Sunday was a control freak, everyone knew that, but it seemed like he got better ever since he boarded the Astral Express. But how could someone change that quickly? You (Trailblazer or not) decided to test it out while having some fun as well.
Or
You tease and control Sunday until he breaks (he's really sweet about it though).
(PLEASE READ BEGINNING NOTES)
Series
- Part 1 of Weekend Gooner
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railroad blues || a story in three parts by lilyveil1399 (clairespring7840)
Fandoms: 崩坏：星穹铁道 | Honkai: Star Rail (Video Game)
22 Jul 2025
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Freshly integrated into the Astral Express crew, Sunday finds himself on the troublesome end of a misunderstanding whilst perusing market stalls at the docks of a foreign planet. The young trio proves to be an unlikely set of allies as he attempts to evade incarceration.
Again.
Alternatively, Sunday finally procures a phone. He's all too eager to message a certain Stoneheart regarding his choice cologne brand.**~~~~~~**~~~~~~**~~~~~~**~~~~~~**~~~~~~**~~~~~~**
The Express Crew's weekly game night starts off as nothing out of the ordinary. It is, much to Sunday's chagrin, another round of Marco Polo. He supposes that it's better than yet another round of Charades.
Regardless of the game's clear objective to evade him at all costs, Sunday finds it more than a little odd when not a single member of the crew responds to his calls, and he's very close to forfeiting entirely when a voice finally breaks the silence:"...Marco?"
"Polo."
Oh, but that's...that's not the Express Crew at all.Series
- Part 4 of pride goeth before the fall
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No one could have imagined this turn of events by EthanSel666
Fandoms: 崩坏：星穹铁道 | Honkai: Star Rail (Video Game)
18 Jul 2025
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What has become of sunday? Nowhere to go and no one to turn to but then things take a... Rather weird turn of events, will this end in a good or a bad way?
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This is a modern au where Stelle is a nepo baby of Himeko and Kafka. Sunday was hired as a bodyguard but what happens when Stelle tests his patience.
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Natsusa encourages Sunday to confess his feelings to Caelus and things sure do happen.
(A.K.A: Another excuse of a porn without plot AU of Sunday, who took his brother's (in voice) word WAY too seriously)
(Disclaimer: No actual people are harmed as this is a work of fiction)
Series
- Part 2 of Horny Angel
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// first meetings with Sunday
The biggest fan of Robin has no clue she had a brother.
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Not sure if anything’s real, or a dream by Icarus_the_writer for diecosmonaut
Fandoms: 崩坏：星穹铁道 | Honkai: Star Rail (Video Game)
29 Jun 2025
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Sunday and Firefly meet. It goes swimmingly well.
Title from welcome to wonderland by Anson Seabra
Series
- Part 1 of Iccys ship indulgences
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Summary
Sunday was a control freak, everyone knew that, but it seemed like he got better ever since he boarded the Astral Express. But how could someone change that quickly? You (Trailblazer or not) decided to test it out while having some fun as well.
Or
You tease and control Sunday until he breaks.
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slobber over halovian dross by vorpalz
Fandoms: 崩坏：星穹铁道 | Honkai: Star Rail (Video Game)
20 Jun 2025
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But Sunday is like a coil. A tightly wound, pressed up spring. Once the bruising pressure alleviates, he will come undone and flourish. Perhaps dropping a few hints on his ulterior motives, too. But he still needed to whittle the guy down first.
“Your eyes bore into the back of my skull, hound."
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just some very quickly written nsfw stuff with sunday and anaxa! this is my first time actually writing nsfw so hope u like it :D
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"But really, when I saw that movie it was really horrible! How could someone even-" she paused, as she saw him staring into her eyes.
"Sorry, I talked too much don't I?"
"No, it's fine. Go ahead."
(Basically this is Sunday's internal thoughts)
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love in the absence of sorrow by cruellae (tinkabelladk)
Fandoms: 崩坏：星穹铁道 | Honkai: Star Rail (Video Game)
25 May 2025
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Then Sunday began to hum. Quietly at first, then a little louder. As the melody became a song with gentle words, Aventurine felt the grief and anguish begin to ease. The harmony of Sunday’s music felt like a tangible thing, wrapping around him like golden light, and the weight that he carried on his shoulders, the trauma and suffering and sorrow, was lifted away.
He hadn’t realized how much pain he had been in, every moment of every day, until it was gone and he could barely breathe for the relief.
or: Sunday uses the Harmony to ease Aventurine’s emotional pain and trauma. But the effect only lasts a short time, and the repercussions are beyond what either of them expected.