[Crossover] The Great Detective Needs No Assistant

My name is Momotaro, and I'm a detective.

Every day, I solve thousands of cases. I'm the police's best helper and the people's greatest savior.

Of course, a great detective like me has plenty of people clamoring to be my assistant.

But you can't forget your roots. Even if people are jealous of my assistant position, I'll never replace my two assistants!

My great-nephew, "Usagi Dazai," and his friend, "Edogawa Conan."

So today's goal is to defeat that dog-headed detective on the other side, Edogawa Ranpo!

He actually stole a famous novelist's pen name and uses it as his own title. He has no shame at all!

In this story, you'll find the Gravity User becoming a father figure, the Bandage Freak turning into a great-nephew, a 26-year-old Conan, and the Three Lucky Treasures with both leaders.

A crossover featuring the Eternal Elementary Schooler, the village chief and his village, a certain high school, and the Yokohama crew.

The pairing is either Ran or Dazai.

The heroine is a happy little airhead.

Theme: Working to save world peace.