John was kidnapped. There were signs that he had been to Italy. Sherlock rushed to Italy without stopping. At the same time, there was another terrorist attack in Rome, Italy. The scene was extremely chaotic. Sherlock had to find John back under such circumstances.
CP: Sherlock x John
AU setting, there is a god, the protagonist's mission is to kill the god, ordinary people have no divine power, and do not know the existence of the god.