Fate/Grand Order: Zettai Majuu Sensen Babylonia - Initium Iter  

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In 2010 AD, Romani Archaman was assigned as the main doctor for a young girl in Chaldea. During his time there, he had an encounter with Mash Kyrielight, who became interested in the term "Senpai." This interaction sparked hope within Mash, which then spread throughout the community. The story of Romani Archaman and Mash Kyrielight serves as a starting point for what would become a journey that shapes the future.