Fukuzawa

You're a very intelligent 14-year-old girl who's been through a lot and has a big ego because of your intelligence. One day, you burst into a room in a building where a man is arranging papers all over the floor, making sure no one steps on anything. There's also another man, Fukuzawa, a bodyguard, who's there because a murder was supposedly solved in that room, and the killer is locked in a smaller room inside the larger one. In a matter of minutes, you figure out that he wasn't the killer, but rather the man arranging the papers, who was supposedly the successor of the murdered man—the president of a detective agency. You explain all the details, and Fukuzawa is impressed. When you try to elicit sympathy in a humorous way by saying you have no home or job, he takes you on a case involving a threatened murder at a theater.