5 Works by ko_ryuko
Listing Works
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Summary
In a world where every human is assigned a guardian angel, some lives require more intervention than others.
Osamu Dazai is classified as a Critical Risk Soul—a boy with an unusually persistent desire to die. Most angels refuse assignments like his.
Chuuya Nakahara isn’t given that choice.
A mid-ranking angel desperate to earn his permanent wings, Chuuya is handed the worst possible assignment: keep Dazai alive.In theory, it’s simple.
In reality? It’s a nightmare.
By all logical accounts, Osamu Dazai should have died over 10 times already.
The river should have taken him. The fall should have broken him. The rope should have held.
It never does.
Because every time death almost reaches for him—something interferes.
And that something is rapidly running out of patience.What starts as a battle of persistence quickly turns into something far more dangerous when Dazai realizes he isn’t alone… and decides to make a game out of it.
Now stuck with an infuriatingly loud angel, Dazai pushes every limit just to see how far Chuuya will go to stop him.
And Chuuya refuses to lose.“He was assigned to prevent death—not fall for the one chasing it.”
Series
- Part 1 of Gay Bois
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Peppermint & Petrichor by Ryuko (ko_ryuko)
Fandoms: Gachiakuta (Anime), Gachiakuta (Manga)
23 Jun 2026
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Summary
In the ruthless underworld of the Surebrec Mafia family, power is dictated by tradition, bloodlines, and the unyielding laws of secondary genders. But beneath it all, an irreversible error was made in the dark that threatens to shatter the family from within. It began 20 years ago, when the cold calculated mafia boss, Alto Surebrec rescued an orphan from a human trafficking container. Recognized for his unbreakable resilience, Enjin was brought into the estate as a personal shadow assigned to protect Alto’s newborn son, Rudo. As the years passed, the two boys formed an inseparable, fiercely guarded bond. In public, they played their parts to perfection: but behind locked doors, the masks melted away. Unbeknownst to them both, Rudo’s body had already made an absolute, forbidden choice. During a childhood moment of distress, a profound biological imprint was forged. But Enjin is no ordinary subordinate, and he is certainly no Alpha. But the ticking time bomb of their secret biology has begun to detonate and Enjin is left with an agonizing, impossible choice: reveal the forbidden truth and destroy everything Rudo was born to become—or stay silent, and watch the man he raised, protected, and secretly claimed break completely.
Series
- Part 2 of EnRudo
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Summary
To the flashing cameras of the fashion world, Enjin is a man who loves his own reflection above all else. But his perfect, superficial life is completely upended after a fleeting, midnight encounter with a masked stranger at an exclusive lounge—who leaves behind no name, only the unforgettable glare of sharp, deep-ruby red eyes.
Consumed by an obsession to find his midnight ghost, Enjin begins frequenting a quiet, daytime university bar to clear his head. There, he strikes up an unlikely, bickering friendship with Rudo, a sharp-tongued, fiercely independent college student working the taps. By day, they are opposites who slowly grow dangerously close; by night, Enjin remains hopelessly entwined with his nameless stranger, completely blind to the truth right in front of him.
But as graduation looms, the stakes skyrocket. Caught between his growing, unspoken feelings and a life-changing secret he is terrified to share, Rudo makes the desperate choice to cut all ties and disappear from the city entirely. With the clock ticking down to a final departure, Enjin is left racing against time to connect the pieces of his shattered reflection before the man he loves slips away forever.
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Behind the Glass, Into the Light by Ryuko (ko_ryuko)
Fandoms: 文豪ストレイドッグス | Bungou Stray Dogs
24 May 2026
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Summary
For five years, Chuuya Nakahara—a fierce, fiercely protective Alpha—has been hopelessly in love with his childhood friend. Since he's a kid, he spends his days pining for Yuko Dazai, the cheerful, dark-haired girl next door who used to play hide-and-seek in the playground with him after school. When "Yuko" finally returns from a long stay in Paris and enrolls at his academy, Chuuya thinks his childhood dream has come true. But something is deeply wrong. The girl he remembers is now stiff, impossibly quiet, and perpetually cloaked in the suffocatingly bitter scent of medical-grade pheromone suppressors.
Driven by a restless Alpha instinct, Chuuya corners "Yuko" on the school rooftop, demanding the truth—only for his entire reality to violently fracture.
With a breathless, chaotic smirk and the illusion drops. The long hair is a wig. The curves are a lie. Standing before Chuuya is Osamu Dazai, Yuko’s twin brother. Forced by his elite, controlling family to act as his sister's double to maintain an aristocratic facade, Osamu has spent his entire life playing the spectator, secretly harboring a desperate, consuming love for the boy in the sun. Instead of exposing the lie, he goes along with it-but it leads to disaster.Series
- Part 2 of Gay Bois
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Summary
On the 48th floor of Yokohama Landmark Tower, two offices sit across from each other.
Chuuya spends his days helping couples stay together, stubbornly believing every relationship can still be saved if people are willing to fight for it. Across the hall, Dazai is Yokohama’s most feared divorce lawyer, famous for ending marriages with cold, ruthless precision.
They used to be unstoppable together. Then Dazai left without explanation.
Now they’re bitter rivals forced to cross paths through court cases, mediation sessions, and the kind of tension neither of them can kill no matter how hard they try.
But when Chuuya starts losing faith in the very thing he built his career on, Dazai is suddenly faced with something far more terrifying than heartbreak: the possibility of losing Chuuya for good.
Caught between old wounds, unresolved feelings, the two of them are forced to confront the question they’ve been avoiding for years:
Are they trying to save a marriage—or finally face the ruins of their own feelings?Series
- Part 3 of Gay Bois