Kool_Koopa
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Recent works
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Sinister Steeds by Kool_Koopa
Fandoms: ウマ娘 プリティーダービー | Uma Musume: Pretty Derby (Video Game), Sinister Minds (Album), ウマ娘 プリティーダービー | Uma Musume: Pretty Derby (Anime)
26 Apr 2026
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Summary
Umamusume, they are born to run. And after each race, they perform. A glorious celebration of the race just ran and a rush for the leader and the rest that perform with them. However, once the Winning Live finishes and everyone goes back to their dorms after a good race, it's... silent.
A bit too silent for one Uma, who seems to look past the facade she believes some of her peers hold up. Her goal is simple, give them a voice. And she'll do it the only way she knows how. Music.
She wants her peers to sing songs not produced by someone else that observes their accomplishments from the 3rd person, but from the ones that live it and understand their own struggle and pain the best. She uses an abandoned room in the basement of Tracen and sets up a spot for Umas to let out their feelings through song if they so desire. She wants to compile all the songs recorded there in one album for safekeeping and to show what Umas really go through in their heads. She just wants people to understand.
The name? Sinister Steeds.
Recent bookmarks
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How to create your work skins to have colored text by Goddess_of_the_arena
Fandoms: AO3 help - Fandom
22 Feb 2025
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Summary
This is a guide to make text in color, be it for a single word, a full paragraph, several paragraphs in a row, or even the whole chapter, also in different sizes. The tutorial also contains ready-to-use codes for you to add to your work skins.
WARNING: all the codes in this guide were tested on a computer. I can't guarantee the effect when the work they are applied to is read on a mobile phone.
CHAPTER 1 is for pure colored text.
CHAPTER 2 is for text in gradient color, both linear gradient and radial gradient.
CHAPTER 3 contains the steps to combine gradient background with gradient text. It also contains the links to each of the other guides of my CSS GUIDES series
CHAPTER 4 contains the links to eight sites where you can create your gradients and get the ready-to-copy code to paste in the CSS code of the workskin.Series
- Part 1 of CSS GUIDES
- Part 1 of Goddess_of_the_arena's CSS Playground
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- English
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- Bookmarks:
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Bookmarked by Kool_Koopa
07 Jan 2026
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Umamusume: Violent Derby by Lewdie Cutie (Saphron_Simp)
Fandoms: ウマ娘 プリティーダービー | Uma Musume: Pretty Derby (Anime), ウマ娘 プリティーダービー | Uma Musume: Pretty Derby (Video Game)
05 Sep 2025
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Summary
History will be made tonight. Seventeen Umamusume will enter, but only one will walk away as the very first Umamusume Wrestling Federation Champion. Who will rise? Who will fall? Who will claim the gold? Don’t miss this once-in-a-lifetime pay-per-view spectacular called by Mister Edward Hands and ‘Dangerous’ Donnie Diamond. The road to glory begins tonight!
Bookmarked by Kool_Koopa
06 Jan 2026
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I died during the Battle of Hogwarts and was reincarnated as a trainer for horse girls by chesedtomeetyou
Fandoms: ウマ娘 プリティーダービー | Uma Musume: Pretty Derby (Anime), ウマ娘 プリティーダービー | Uma Musume: Pretty Derby (Video Game), Harry Potter - J. K. Rowling
04 Feb 2026
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Summary
After being left to die during the Battle of Hogwarts, Severus Snape expected eternal rest, or at least, a nice, quiet afterlife free from the hardships and turmoil of his life. What he didn't expect, however, was to wake up in a world where horse girls replaced horses, ran races, and performed idol concerts after the said races.
Now, pushed into a world with no magic and with hyperactive horse girls, he finds himself in the shoes of a newly appointed Trainer at Tracen Academy. Snape meets what he could consider his worst fear: a loud, chaotic, chatty Uma Musume, unable to stop smiling, and unable to sit still on the floor for more than 10 seconds.
Her name? Daitaku Helios!
Snape would eventually find himself responsible for Helios' success, 'unfortunately' becoming her trainer, much to his dismay.
Armed with only dry sarcasm, a lifetime of trauma, and the little patience he has left, Snape must get through this world with his mind in a singular piece and navigate through the many challenges that may arise during his training regime.
One gyaru Uma Musume. Three years. One disgruntled old man, once known by the titles of Head of Slytherin and The Half-Blood Prince. Dear God.
Bookmarked by Kool_Koopa
06 Jan 2026