After the war, Marianne and Hanneman stayed in touch and deepened their friendship through letters. When Hanneman's Crest research fell on hard times, Marianne was able to secure Margrave Edmund's financial support to allow his work to continue. The research bore fruit in the form of magical tools which could be used even without the aid of Crests, and the funding allowed these tools to be produced in great number. After Marianne inherited her adoptive father's house, she guided Hanneman to create a branch of research devoted to peaceful applications of Crestology. These advancements, which Hanneman provided, became the legacy of Marianne's later years.