The Detective Conan franchise offers an unusually broad mystery playground: the original manga, the ongoing television continuity, and side-story films that send familiar detectives into bomb threats, locked motives, city landmarks, ships, memories, and elaborate games. New readers usually come for the puzzle and stay for the recurring cast dynamics. Across entries, the appeal is less one single case than a reliable machinery of suspicion, disguise, police procedure, school-age loyalties, and adult danger.