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Where The Path Leads - A Daiya no Ace AU by u_jssmbcl
Fandoms: ダイヤのA | Daiya no A | Ace of Diamond
27 Sep 2025
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Summary
The final game had ended days ago.
The cheers were gone. The trophy sat forgotten on a shelf in the classroom. His teammates were still buzzing — talking about scholarships, uniforms, and the pros.
Sawamura Eijun… walked home in silence.
The sun had dipped behind the trees by the time he reached the hill. From there, he could see the empty field they’d played on as kids. The old diamond still faintly visible.
A breeze rolled over the dirt, lifting dust into the fading light.
He stayed there for a while.
Just watching.
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“Are you going to keep playing?”
His mother’s voice from that morning. Soft. Careful.
“I guess,” Eijun had said, eyes on the floor. “I mean… I don’t hate it.”
She hadn’t asked more.
That night, lying in bed with his glove on the windowsill, Eijun stared at the ceiling.
Everyone kept talking about high school. About Koshien. About scouts.
But when he closed his eyes… all he saw was dirt, a spinning ball, the sound of the mitt.
That was it.
No crowd. No spotlight.
Just that moment.
And for now… it was enough.
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It all started after an accident.
Sawamura Eijun was just 7 years old when he fell out of the tree in his childhood yard, and it would be just his luck for him to land right on his head. And if becoming temporarily hospitalized and monitored wasn’t enough, Eijun began to see things. Red Strings invaded his vision and stretched across the sky as far as one can see.
or
Soulmates, but only Sawamura can see them
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When The Sun Meets The Moon (REWRITTEN) by Ayvn
Fandoms: ダイヤのA | Daiya no A | Ace of Diamond
20 Aug 2025
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"Love is a truly beautiful thing, sometimes it comes out of no where.."
"Oh yea, and how would you know that Shakespeare?"
"Just look at Eijun and I, who knew I'll fall for that little devil."
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Eijun is a well-known pitcher from Nagano and Miyuki a city boy from Tokyo. Eijun is very smart, cunning, and the literal sun while Miyuki is a sneaky, sarcastic and lovable bastard. To everyone their opposites but somehow manage to fall in love with each other like it was nothing. A story with love, friendship, angst, fluff and some smut. We settle down and watch the best battery in history make its start and also we get to see the lives of our favorite boys!
Series
- Part 2 of The Eclipse Collection
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Chris should’ve seen it coming. The moment his tiny, hyperactive cousins latched onto baseball, there was no turning back. Years later Seido’s baseball team is in for a rude awakening—because Eiko and Eijun Sawamura don’t know the meaning of "halfway".
Series
- Part 2 of Cut above the rest
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What happens when two teammates, one battery, begin to feel like more? Will they relize it or push their feelings away?
Or
Miyuki and Sawamura try to follow their hearts
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Some Stories are Meant to be Told by Jinniett
Fandoms: ダイヤのA | Daiya no A | Ace of Diamond
21 Jun 2025
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There are a lot of unexpected things in life that could change your future. To Eijun, that unexpected thing was when someone moved to the house next door.
or
In which a retired professional baseball player moved to a house next to the Sawamura household.
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Thai translation here!
https://www.readawrite.com/a/1148033e1a4cfef5d8facc2800f9a3f4Series
- Part 1 of Moving Day
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Sawamura Eijun at fifteen years old had already won awards for his acting, was an a list celebrity, and known world wide.
Sawamura Eijun at fifteen years old was also going back to Japan, enrolling in high school, and becoming a baseball player. All to be better in an upcoming roll.
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Or which Eijun is famous but still ends up going to Seidou.
He brings with him his talent, and trauma.
ON HIATUS UNTIL I FINISH MY OTHER DAIYA FIC
Series
- Part 1 of Daiya Fics
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Bang, Bang, Firework Blooms In The Sky by blumoonrasia
Fandoms: ダイヤのA | Daiya no A | Ace of Diamond
15 May 2025
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Summary
Eijun loved fireworks.
The colorful sparks that painted the canvas of the night, along with the soft glow of the moon, reflected in his brown eyes. Every year, every time, Eijun could never tire of admiring them.
It was beautiful.
Series
- Part 2 of Another Story To Tell
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The Thrones at Mound’s Peak by Lost_fromLight
Fandoms: ダイヤのA | Daiya no A | Ace of Diamond
21 Apr 2025
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Summary
Just a month shy of their 5th birthday, twins Eiko and Eijun Sawamura are uprooted from their lives in Nagano and to move to the States. Adjusting to a new life feels overwhelming, but they find solace in the presence of their cousin Chris. And with him they gain a love for baseball.
Or;
Chris really should’ve known better. When it comes to his cousins, the word “determined” doesn’t quite cut it. Seido Baseball Club might just have to buckle up for the ride.
DISCONTINUED — rewrite is under the series!
Series
- Part 1 of Cut above the rest
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The One That Shine Brightest [On Hiatus] by AcEijun_Lover
Fandoms: ダイヤのA | Daiya no A | Ace of Diamond
26 Mar 2025
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Summary
What you read may not be the whole story.
[English is not my first language so please don't expected much]
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The boys were recounting daring deeds and impossible manoeuvres with dramatic flair, and boisterous laughter rang out from the huddle. They stopped as a group, listening in to the final words of their leader.
“I know we lost, and I’m probably banned from baseball forever, but I have no regrets. Each one of you rose to the challenge, and without you there never would have been an Akagi Junior High team. Even after they demolish our school, our team’s journey to Koshien will never be forgotten. This Sawamura Eijun thanks you for making her dreams of going to nationals come true!”
Cheers rang out, tears and snot pouring down the faces of the nine-person strong team, but it was all white noise. Oh, Rei thought. Oh.
The pitcher, Sawamura Eijun, was not, in fact, a boy.
OR: Sawamura Eijun is a diamond in the rough who Rei is willing to exploit loopholes to polish.
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When Different Worlds Meet by CartoonNerd12
Fandoms: Haikyuu!!, ダイヤのA | Daiya no A | Ace of Diamond
15 Mar 2025
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Summary
Basically yes, this is a one-on-one crossover with Haikyuu and Ace of Diamond.
The headcanon of Daichi and Eijun being related is one of my favorites and it's always interesting to explore different mediums interacting with each other.
Hope you enjoy!
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' Eijun tried to kill himself, and failed.'
A famous story of a certain infamous pitcher of Seidou high school. Everyone knew about it now, under the chilly days of spring sky, there was a boy that has tried to suicide but he failed. He was just getting a recognition of his baseball game on a certain game, yet before anyone could congratulate him, he has fainted with a pool of bloody bath drowning his body. Fortunately, he was found out before it gets critical.
When he came back to Seidou, the only thing keeping him going is the boy named Okumura Koushuu.
(Trigger warning: suicide attempt, suicidal thoughts, depressive thoughts, cyber bullying, bullying. And the author just wrote depressing thoughts based on how she felt when she's depressed so probably not accurately written.)
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Bang, Bang, Firework Bloom In The Sky by blumoonrasia
Fandoms: ダイヤのA | Daiya no A | Ace of Diamond
01 Jan 2025
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Summary
Eijun sangat menyukai kembang api.
Percikan warna-warni yang melukis kanvas malam, bersanding dengan cahaya lembut bulan, marak memantul dari manik mata cokelatnya. Setiap tahun, setiap waktu Eijun tak akan pernah bisa bosan mengaguminya.
Indah.
Series
- Part 1 of Another Story To Tell
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Brighter than the sun, that's what Sawamura Eijun is.
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In which Coach Kunitomo found a budding talent in the form of Sawamura Eijun.
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low whispers around the school have eijun wrapped in curiosity, eventually bleeding into pure desire. however, with kazuya around, just how well can the omega keep his greed from running wild?
— where eijun and kazuya get mixed up in an ... interesting twist of a game; based off a tiktok i saw on my fyp (*´꒳`*)
(HIATUS, writers block - 2 OR 3 CHAPTERS EXPECTED)
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His arm swung back slowly, with all of his concentration focused on getting that last strike.
Then he threw it…
Then there’s a loud clang, the sudden silence in the crowd, and a voice so loud it rang back to him that for a moment, he just stood there, frozen in shock and fear.
And before he knew it, the game ended.
He wished things had turned out differently.
In which Sawamura is trapped in an endless time loop, attempting different paths and falling in love along the way.
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It's the end of the world as we know it (and I'm not fine) by MaskSoully
Fandoms: ダイヤのA | Daiya no A | Ace of Diamond
03 Jun 2024
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He couldn’t move.
Then, Haruichi felt a sharp pain and saw flashes in his head.
He gasped.
The dream.
The dream that had startled him awake. He had been so preoccupied with talking to Zono-senpai and offering his apology that he had forgotten what he had dreamed about.
But… It just couldn’t be possible. All of it was a dream.
Yes, Haruichi huffed.
It was just a dream.
Project Nexus was supposed to be the gate way to a new world of understanding. It was supposed to change everything. Science. To allow them to finally take that cosmic power and use it for the betterment of humanity.
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With abilities that in no way should exist are possessed by Haruichi and his friends, there is nothing to do but ignore. Go back to normal life. But as it gets harder and harder to hide said abilities from friends... All Haruichi can think is to protect.
Protect Eijun and Furuya.
No matter what.
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To not regret what made you smile by justanewbie2054
Fandoms: ダイヤのA | Daiya no A | Ace of Diamond
23 May 2024
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Summary
“STOP, PLEASE STOP”
“I will make sure you never even think of playing baseball again kid"
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"I'm aware that Eijun Kun is serious about baseball... but I'm afraid that kind of extreme stress on his shoulder must be completely avoided. Even if his body can handle it, his shoulder will give out and there’s no going back after that.”
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"What if I switch?"
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Regardless of how difficult things are, Sawamura Eijun does not regret anything that made him smile...An AU in which, before he could ever realize his true potential as a baseball prodigy, Sawamura Eijun is met with an event that throws him well behind the starting line.
Will he be able to re-enter the race when all odds are stacked against him? Of course, he does, since his passion for baseball runs deep. But it is not as simple as anyone would assume, and he is no longer the bright and carefree boy he once was.
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"So, if you guys were given a chance to play with them again, will you guys take it?" She asks.
"Absolutely."
"OF COURSE!""So, what if I say if you can?"
"What?"
"What if I say that, you can play with your old team again? Get you the second chance you deserve?" She asks, and her eyes start to glow brightly.