Yamamoto ran the Munich office for Kadofuku and was well-connected in German business circles—especially after Hans Georg Schuwald got back into the financial game. When Johan, Schuwald's secretary, asked him to track down a copy of The Nameless Monster, Yamamoto didn't hesitate to hop over to the Czech Republic, knowing the favor could be valuable.
He'd been friendly with Tenma before everything went down, and had plans to meet with Inspector Lunge that day to answer some questions. His sudden trip to find the book threw off the schedule, but he and Lunge caught up later that night at a bar instead. That's when Lunge spotted the copy of The Nameless Monster on him. Curious, Lunge started digging into it—which ended up sending him to Prague to investigate the shadowy figure behind it all, Emil Sebe, also known as Franz Bonaparta.
Content compiled by AnimeList.moe from publicly available sources.
