Originally posted from Archive of Our Own. I decided to also post this story here on fanfiction because... why not ¯\_(ツ)_/¯

Hey guys, for those whose first time stumbling upon this, this is an Osomatsu fanfiction based on a 'what-if' scenario where Tougou (a character from Osomatsu-kun comic series) succeeds in kidnapping Osomatsu and how that would have affected the brothers.

WARNING!: While this is Rated T, there are some chapters that will depict somewhat graphic violence/abuse and a lot of swearing. So do keep that in mind if you wish to continue further.

Also, this story will have OCs in order to help the narrative. This will be further explained in Chapter 7: Tough it Out. If you do not like OCs in general, perhaps it's best to just skip out on this story.

Anyways, thank you for reading and I hope you enjoy the story!

Disclaimer: I don't own part of Osomatsu-san. I also wonder why I have to even say this.


Blessing in Disguise

PROLOGUE


"I'll be taking him as my hostage."

"M-mom!"

"Osomatsu! No, please don't!"

"No, let go of me! Mom! MOM!"

"OSOMATSU!"

The terrifying lodger left the Matsuno household, taking the eldest son with him. Unfortunately, the young boy never returned home.

They searched town to town for him. Police tried to find leads to where the robber might have taken him, only having the trace become only thing that was found was the blue blazer that the sextuplets all wore, stained with the blood of the missing child. With each passing day, the family feared the worst.

About 8 years have passed and the 18 year old quintuplets had recently graduated high school.

Karamatsu had to take the role of being the eldest son. The second brother tried every way he could to bring stability and peace back to the family. In order to help his parents out, he went straight to work after high school. He is currently working three part-time jobs: an employee at a local music store, a waiter at a small cafe, and a nighttime cashier at a convenience store.

Choromatsu couldn't bring himself go fully integrate himself into society after high school. The third brother had taken a more comfortable lifestyle of staying at home playing video games and going on the internet rather than going out to find a job. Still, as the second eldest in the family, he took the responsibility in taking care of the house chores, cooking for the family, and tending to their parents when needed.

Ichimatsu, unlike his two older brothers, decided to attend a university. He was often left to his own devices, so he took the time to focus on his education. Ichimatsu is the only one who lives away from home; residing in a nearby apartment close to the university. He does, however, regularly visits the Matsuno household when he isn't attending classes.

Jyushimatsu, just like Ichimatsu, chose to continue his education at a university much closer to home. During his junior and high school years, he participated in a lot of sport activities and found that he had a natural talent in baseball. He often spends time hanging out with his friends and classmates outside of school. He is currently a part of the baseball team at his university.

Todomatsu, the youngest brother, grew up to be a rather troublesome child and started gaining a rather disrespectful and rebellious attitude throughout the years. Despite being very competent in school, he became rather disinterested in the responsibilities of an adult. He started hanging out with the wrong crowd and would stay at their places rather than go home. He spends his time out and about either causing trouble or partying much to the family's dismay.

Despite the hardships and grief they've all dealt with since the disappearance of their eldest brother; for Karamatsu, Choromatsu, Ichimatsu, Jyushimatsu, and Todomatsu, they knew they had to keep moving forward. They continued on with their lives, chose separate paths, and were overall content with where they were now.

So what would happen if something, or to be more specific, someone from the past decided to show up to cause turmoil once more for the Matsuno quintuplets?

In a city miles away, a dark hooded figure stalks his prey. With a knife in hand and a wide grin on his face, he prepares to attack.