Conan Transmigrates into Genshin Impact, Leaving Death Wherever He Goes

The Whole Class Transmigrates into Detective Conan and Plays Genshin Impact Characters

There was a book where the whole class transmigrates into Detective Conan and plays Genshin Impact characters. The students develop some kind of strange illness, and only recover when the protagonist is nearby. I can't find it anymore. What should I do?

Any Stories Where Genshin Impact Characters End Up in Detective Conan or Ye Luoli?

Genshin Impact Characters Transmigrating to the Detective Conan World

Genshin Impact characters transmigrate into Detective Conan, either with a secret identity or as themselves. I don't want crossover anthologies. No pairings, no brainless characters, no harem or everyone's-favorite stories. Please check the criteria before recommending anything.