Origin
Germany
Dieter (ディーター Dītā) is the only remaining child under the care of Mr. Hartmann. Hartmann was trying to continue the Kinderheim 511 experiments on him, until Dieter was found by Dr. Tenma and was rescued. Thereafter, Dieter would accompany Dr. Tenma as a faithful and steadfast companion in his journeys and regard him as his best friend, despite Tenma's desire for him to be given a stable life. Later, as their travels progressed, Dieter would encounter and assist a wide variety of other people, such as Nina Fortner, whom he also befriended and stayed with.
Monster
Dr Kenzo Tenma is a genius surgeon working in post-Cold War Germany who has a bright future ahead of him. He is admired by his colleagues, loved by his patients, and due to marry his boss' daughter, the beautiful Eva Heinemann. One day, when two patients in desperate need of emergency surgery are wheeled into his hospital, Tenma faces a terrible choice of saving the orphaned boy who came first or the mayor of Düsseldorf, whose recovery would raise the hospital's profile and boost his own career. Against the demands of his superior, Tenma does what he believes is right and saves the child. However, his decision not only damages his prospects, but unleashes a chain of events so horrific that it might have come from the depths of his worst nightmares. Laden with guilt, Tenma begins a journey across Germany in search of a formidable young man who will challenge his morals, his love for life, and his very sanity.
