[Crossover] What Should I Do About My Idiot Little Brother Ranpo?

[Blurb]

My younger brother, Edogawa Ranpo, is an idiot.

Ever since I was little, Mother told me that my younger brother was a bit clumsy, and that as his big sister, I should take good care of him. So from the age of three, I took on the responsibility of "looking after my idiot little brother."

As it turned out, Mother was right. My little brother really was an idiot through and through.

"Auntie, why are you smiling when Uncle bought you the same gift as his lover?"

"Miss with the glasses, why are you so happy to get a letter when it says he wants to break up with you?"

"Officer, why don't you arrest the murderer when he's standing right beside you?"

"Mom, why do you know your daughter broke the vase but still pretend you don't knoowwwww!"

Seeing that my brother was about to rat me out, I quickly clapped a hand over his mouth, gave Mom an awkward smile as if nothing had happened, then dragged him back to our room and beat him up.

*

My younger brother, Edogawa Ranpo, really is an idiot through and through. After our parents passed away, the responsibility of looking after my idiot little brother fell entirely on me.

But taking care of an idiot is exhausting, especially when the idiot loves to prattle on all the time.

So when I was seventeen, I took my brother to apply for a job at a company. When he pointed out that the secretary was the real culprit who had murdered the boss, I finally lost my temper:

"Idiot! That's obviously because if nobody played the idiot, the world couldn't function normally!!!"

But who would willingly play the idiot? Can't you see the secretary and the bodyguard over there are both scowling?! Stop poking at their sore spots! I don't want to sleep on the streets again tonight!

*

Sigh, my idiot little brother.

In the end, I lost the job that had been practically within my grasp. I let out a sigh.

●-●[Idiot's Guide]●-●

1. A big sister who thinks she understands everything but is actually the idiot vs. a clever little brother who's always called an idiot but realized much earlier that something was wrong with the world.

2. The heroine has the Edogawa family's inherited intelligence, but her worldview is warped. She thinks the Edogawa family's intelligence is just the average person's intelligence, and that "the world can only function normally if someone plays the idiot," so most people are deliberately acting stupid. Like Ranpo, she was "overprotected by her parents."

3. No logic, no logic, no logic. A feel-good daily-life story.

4. Planned crossover with Bungo Stray Dogs, Haikyu!!, Oshi no Ko, and Wind Breaker.

5. If you don't like it, please leave. Don't message me to say you're dropping it.

Theme: A close-knit brother and sister who never abandon each other.