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The series begins three months later, in the United States of America, a young Japanese woman named Saki Morimi is visiting Washington D.C. as part of her graduation trip. When she gets into trouble, a mysterious Japanese man, who introduces himself as Akira Takizawa, helps her through it. The man appears to have no memory and is completely naked, carrying only a gun and a cell phone charged with 8.2 billion yen in digital money. The cell phone has the phrase, noblesse oblige , printed on it.