Reincarnated into Detective Conan, I Can't Solve Mysteries, So I Can Only Cultivate Immortality

Wang Gangdan accidentally transmigrates into the world of Conan and becomes the Grim Reaper Elementary Schooler. I'm doomed!! But I don't have even the slightest deductive ability... What am I supposed to do? How is someone like me, Wang Gangdan, supposed to survive? I'm desperate for an answer... Wait... I think I've awakened a System, it's just...