Code Geass: Kiri Kyou no Arthur Case File - Beginning

줄거리

In the summer of Revolutionary Calendar year 98 (Imperial Calendar year 1887), Conan Watson, a college student aspiring to be a doctor, arrives in London from the countryside. There, he encounters Arthur Holmes, an eccentric young man who identifies as an inventor driven by curiosity. Through a twist of fate, the two begin living together. Following an initial incident in London, they become involved in a series of mysterious events, during which Conan observes Arthur's brilliant deductive abilities.