Mrosomatsu Stories

Yeah, you read the title 🍋

Being a cat idol was not the most original idea in the world, but [Reader] knew they sucked too much ass to care. Why should they? Someone who spent their days working a...

[KaramatsuxMale!Reader] This is more of Karamatsu remembering past memories of him and you back in highschool. Playlist♡ • If I Could Ride a Bike - Park Bird, Chevy • M...

this is a x reader book im making for characters that aren't well known or other people don't really know or find attractive/interesting. send requests !!

I forced an ai to do this.

You are the younger brother of the troublesome NEET sixplets. Living with them is not much trouble, but sometimes juggling both your brothers absurdity and your best fri...

Just a book with characters I love and have questionable types that I find attractive.

Just a fun little story! Read, or don't.

Karamatsu and Ichimatsu are bored at home alone on this rainy day. The remaining brothers are vacationing in Hawaii and enjoying the sunshine. Will there be brotherly lo...

(Book 1 of 3) Ichimatsu has always been a loner, yet he secretly wants to change that. He lies to himself constantly, telling himself that he doesn't need other's help...

You want to Roleplay Osomatsu san? Want to be apart of these boys life? Will you come to the right story. Please open the story to see the information! *ROLEPLAY IS CUR...

[ ONGOING ] Y/N moved into Akatsuka from the countryside with her younger brother, Hiro. She gets a stable job as a waitress at a fancy restaurant, and Hiro gets a job t...

One year. It took you one year to realize it. Of course, not on your own. Something, well, someone helped you. -- This takes place after "Innocence". Read that...

Ichimatsu spends some time on the roof, and gets some unexpected - but not unwelcome - attention from his favorite brother [Jyushimatsu/Ichimatsu]

"Make a contract with me and become a magical girl!" Said the mysterious creature. Will our NEETS take the offer or not? Madoka Magica and Osomatsu-San cross o...

just a bunch of weird Memey shit involving Karamatsu that I randomly think of and as things that me and my friends have said throughout the day bc kara is best boi. (his...

A discontinued fanfiction from when I was eleven. I decided to repost this due to the announcement of Osomatsu-San season 3. ...

There's been some sort of accident. Karamatsu wakes up, cold and confused in the Matsuno household. Everyone is acting so strange or was he the one acting strange? He k...

Read the story of a girl named Lauren who is 1/8 human and 7/8 dragon who uses portals to different anime, and sometimes books, worlds trying to bring peace between huma...

(credit to the artist for osomatsu drawing) (PROBABLY REALLY SLOW UPDATES!!!) (might contain some mild language) (gender-neutral pronouns) (Y/N) has been having a rough...