TheCoIIector
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Recent works
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The One Who Never Learned How to Leave by Philomena Poe (TheCoIIector)
Fandoms: おそ松さん | Osomatsu-san (Anime)
09 Dec 2025
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Summary
They remembered the silence that had settled in the house after they left. Heavy. Strange. A silence they hadn’t felt because they were outside living new lives. But Osomatsu had been inside. Alone. Someone like him, who needed laughter the way others needed warmth, sitting in rooms that no longer echoed with their noise.
Maybe that was why he held on to them now, little by little, without saying a single word about it.
❄️
Inspired by Osomatsu-san Season 1 Episode 24: "Letter".
Series
- Part 4 of Silent Seasons, Speaking Hearts
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A Karamatsu Winter Special Nobody Asked For (feat. Karamatsu Speak™) by Philomena Poe (TheCoIIector)
Fandoms: おそ松さん | Osomatsu-san (Anime)
09 Dec 2025
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Summary
"Wow, you changed it back already? So fast. Guess that brown phase really wrecked you. It looked super lame anyway.”
"What was that, Osomatsu-niisan? You think I’m lame?"
Karamatsu’s breath caught. He could see it. Could feel it. The subtle quiver in his little brother. Already trembling, needing reassurance.
He rose from his seat. He felt the gravity of the moment. The responsibility of being an older brother.
❄️
Inspired by Osomatsu-san Season 2 Episode 14: "Choromatsu Incident".
Series
- Part 3 of Silent Seasons, Speaking Hearts
- Language:
- English
- Words:
- 1,628
- Chapters:
- 1/1
- Kudos:
- 7
- Hits:
- 81
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The Space Between Two Brothers by Philomena Poe (TheCoIIector)
Fandoms: おそ松さん | Osomatsu-san (Anime)
08 Dec 2025
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Summary
He wasn’t uncomfortable. Not really. Just… aware.
Aware of the space between them, small yet strangely heavy. Aware of the fact that they usually existed side by side without ever really facing each other.
Older brother and younger brother. A simple relationship.
Except when it wasn’t.
🌱
Inspired by Suirikumatsu's interactions.
Series
- Part 2 of Silent Seasons, Speaking Hearts
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Where the Warm Days Hold Us by Philomena Poe (TheCoIIector)
Fandoms: おそ松さん | Osomatsu-san (Anime)
05 Dec 2025
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Summary
Ever since Karamatsu came home from the hospital, a strange tightness rested beneath his ribs. He kept pretending he didn’t notice it. He kept pretending there was nothing to feel guilty about.
(He threw a pan. A whole pan. At his brother’s face.)
He refused to think about it.
(He’s horrible. A horrible, horrible brother.)
Absolutely not.
☀️
Inspired by Osomatsu-san Season 1 Episode 5: "Karamatsu Incident".
Series
- Part 1 of Silent Seasons, Speaking Hearts
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Just A Story You've Been Told by Philomena Poe (TheCoIIector)
Fandoms: 전지적 독자 시점 - 싱숑 | Omniscient Reader - Sing-Shong
18 Oct 2024
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Summary
Kim Dokja wakes up in the body of Prince Ricardo, a notorious wastrel known for his reckless lifestyle.
Note: Rating and tags may change.
Recent series
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Silent Seasons, Speaking Hearts by Philomena Poe (TheCoIIector)
Fandom: おそ松さん | Osomatsu-san (Anime)
09 Dec 2025
Summary
Theme: 🌱 ☀️ 🍂 ❄️
Works about the Matsuno sextuplets.Not connected to each other.
- Words:
- 4,788
- Works:
- 4
- Bookmarks:
- 1
Recent bookmarks
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An Addictive Dose for Provocation by orphan_account
Fandoms: おそ松さん | Osomatsu-san (Anime)
20 Apr 2021
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Summary
Karamatsu wasn’t one to hold trifling matters against his family, but if Choromatsu wanted to make it a game, who was he to refuse from indulging his dear little brother in a little fun?
Alternative titles consist of but are not limited to: 6k words of KaraChoro developing their Nii-san kink, Coined Term: Brotherfuckers, and A Guide to Completely Ruin an Honorific.
Bookmarked by TheCoIIector
28 Nov 2025
Bookmarker's Collections:
Bookmarker's Notes
“Have I gone overboard, brother?
Have I conditioned you so whenever the title ‘nii-san’ is uttered from your lips, your body would unconsciously double over under a wave of searing lust?
I should do just that, for you seem to take a liking into the idea. Whenever you fail to address me as such, I will fuck your throat so hard you wouldn’t be able to speak for days. It will serve as an excellent reminder, will it not?"
*
*
*“You left a lot of marks on me.”
“Mmhm.”
“What the fuck am I going to tell the others?”
“Tell them you got into a fight.”
“What kind of person leaves love bites on their enemy?”
“The wonderful me, of course, brother.”
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Tags
Summary
The Jason Voorhees mask stays on during sex. Choromatsu wanted this.
Bookmarked by TheCoIIector
09 Dec 2025
Bookmarker's Collections:
Bookmarker's Notes
"What are you doing?"
"You wanted me to chase you? Fine." Ichimatsu said, shedding his shirt and pulling on a tattered, ugly beige one in its stead before dropping his pants to trade them for some sturdy work trousers. He slipped on the butcher's apron next, the old fake bloodstains on it just as gruesome as the last time he'd worn it. "Then start running. Right now. I'll give you a ten second head start."
A high-pitched, nervous laugh slipped out of Choromatsu's mouth. "A-are you serious?"
"You can try and run home if you can find your way from here," Ichimatsu explained as he swapped his shoes for work boots, "or you can try and hide somewhere. But you better start running fast, nii-san."
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Tags
Summary
“You did something to Choromatsu!” Osomatsu waved an accusing finger in his face. “He’s acting weird.”
“I didn’t do shit.”
“I can totally see it on your face! Onii-chan always knows!”
Ichimatsu messes with the eldest’s favorite, and gets more than he bargained for. OR Choromatsu Cannot Keep it in His Pants; the Trilogy.
Bookmarked by TheCoIIector
09 Dec 2025
Bookmarker's Collections:
Bookmarker's Notes
A sandaled foot slammed on the brake, and he pulled Choromatsu off by the roots of his hair. “Okay, stop. Really.”
“Awhh, but it was just getting good!” Osomatsu had fallen horizontally into the gap between the edge of the bench and the front seats. “Choro-chan looks so talented, he must have lots of practice.”
“...that was actually my first time,” Choromatsu was a little raspy.
“So hot! Wow, lucky, Ichimatsu!! Lucky, lucky-”
“Shut the fuck up!” Ichimatsu roared. “I’m gonna find a hotel. You’re paying,” he jabbed a finger at Osomatsu, and then Choromatsu “and I’m going to fold you in half and strangle you to death.”
Two same faces blinked at him, with matching flushed cheeks and starry eyes.
“Well, if that’s what otouto wants...”
“Don’t call me that!”
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IchiChoro Stress Relieve Activities by kvfg for gotstaterrify (gottaterrify)
Fandoms: おそ松さん | Osomatsu-san (Anime)
15 Jun 2023
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Summary
Backstory: In an attempt to help with each other's depression and anxiety, Ichimatsu and Choromatsu are fooling around.
- Language:
- English
- Words:
- 1,352
- Chapters:
- 1/1
- Collections:
- 1
- Comments:
- 8
- Kudos:
- 37
- Bookmarks:
- 5
- Hits:
- 494
Bookmarked by TheCoIIector
09 Dec 2025
Bookmarker's Collections:
Bookmarker's Notes
God, I love awkward middlematsu-cest~
*
*
*“Do you like my dick?”
Damn it. “Yeah.”
“Say it.”
“For fuck sake, yes, I like your dick.”
“Is this the best dick you’ve ever had?”
“It’s the only dick I ever had.”
“So it’s the best one you've had?”
“Yes.”
“Are you in love with it?”
"Ichimatsu."
"Call me Number One Big Dick Ichi."
“I'M NOT FUCKING SAYING ANY MORE OF THAT! ENOUGH!!”
“...”
“...”
“...Could you maybe meow for me?”
“...What are you, a furry now?”
“...”
“...Me- meow.”
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Tags
Summary
In which Osomatsu teaches his little brother about a little thing about being disgusting.
Bookmarked by TheCoIIector
09 Dec 2025
Bookmarker's Collections:
Bookmarker's Notes
“Choro-chan,” he crooned, “it’s not good to lie, you know.”
Choromatsu, startled by how little distance was suddenly between them, fell back onto the couch. Osomatsu was on top of him in an instant, his knee pressed into the couch between Choromatsu’s legs, his hands finding both of his brother’s to pin them down.
Choromatsu gasped. He attempted to free his hands, but they were trembling so much that Osomatsu was able to easily keep them still.
He was screwed. Osomatsu would never let him live this down.
“I saw what you were doing just now, nice and clear,” Osomatsu continued, an excited gleam in his eye. “You were touching yourself to me.”