"Bungou Stray Dogs" Did I Do Something Wrong While Searching for Voldemort in Yokohama?

You traveled through time and were bound to a savior system, taking only one house elf with you. Your ultimate goal is to defeat the Dark Lord, but your destination is the world of Bungou Stray Dogs, which is so barren that not even an owl feather can be found. ——So you decided to start cultivating the Dark Lord from today. Intention: Work hard