Detective Conan: I Become Big Brother Gin from the Start

Nakamura Yu wakes up in the world of Detective Conan. After receiving a phone call, he discovers that he has become Gin's older brother. Gin idolizes him, even though in his old world he was just an ordinary person.

Let's see how this world changes with him in it.

This novel and its characters are entirely fictional. Any resemblance to real people or events is purely coincidental. Do not imitate.