Detective Conan: My Childhood Friend Is Gin

Transmigrating into Detective Conan, Kitazawa Itsuki and his childhood friend Gin grow up together in the Black Organization. Rei and Hiro, as well as Hagi and Matsuda, are gradually drawn into the struggle between red and black. [Detective mysteries, romance and sweet moments] [Lighthearted, cheerful, heartwarming, doting romance, gradual descent into darkness]

1.

Gin (sneering): “Why did you make up the codename Yukiguni as your secret identity?”

Kitazawa Itsuki (sheepish): “Of course, it's so I can ‘catch mice’ and make someone happier.”

2.

Rei Furuya (confused): “Why are Hiro and I codenamed Zero and Hiro instead of Bourbon and Scotch?”

Kitazawa Itsuki (shrugging): “I guess you'll have to infiltrate Zero's division first, then get sent back to the Black Organization as undercover agents.”

3.

Shinichi Kudo (half-lidded stare): “Then why is my codename Hawaii Cooler?”

Kitazawa Itsuki (wicked grin): “You learned your skills in Hawaii, right, Sherlock of the Heisei era (crossed out), Moriarty of the Reiwa era, the Black Organization's mole in the FBI, washing machine.”

4.

Yoichi Takato (tossing a red rose): “Magic. That's my codename.”

Hajime Kindaichi (gritting his teeth): “The Puppet Master from Hell! I'll catch you, even if I have to do it in my grandfather's name!”

Body-swap transmigration, nearly invincible, no System

No heroine. The male lead is Kitazawa Itsuki and Gin [Read with caution: there is a Shinichi x Shiho pairing]

It begins thirteen years before the events of Detective Conan, completely departs from the original plot, and the characters' intelligence is quite something.

The Black Organization wins. The liquor is real, but not completely black. No one on either the red or black side dies.

A Detective Conan fanfiction, originally titled “Conan and the Black Organization's Five-Man Team.”