Is There Something Wrong with the Neighboring Film Crew's Team-Building?

[The full text has undergone major revisions, so some chapters may be discontinuous]

After going to a convention with my friends dressed as the Stray Dogs cast, I followed the trend and transmigrated into an anime about a certain death-prone elementary school student.

I thought at most we'd all transmigrate together from the start, but it turned out everyone had transmigrated years before me without telling me, and had already built the Port Mafia and the Armed Detective Agency. (Cat.jpg, shocked)

So... what on earth have you people been doing in this world? Why do both the Red and Black sides look at me so strangely once they find out we're friends?!

1. My friends have watched a few episodes of Detective Conan, more or less, but none of them followed the series seriously. They only know a little about it.

2. The protagonist is cosplaying Chuuya.

3. A fourth-dimensional disaster who isn't quite so fourth-dimensional (?).

Theme: Team building and kicking the neighboring series' bento box aside