In a world where magic and science coexist, Leiot Steinberg is a tactical sorcerer who fights monsters that were once human beings.

When Saki Morimi gets into trouble with the police while in Washington D.C., she is helped by a Japanese man who calls himself, Akira Takizawa. Akira has only two things, a gun and a cell phone loaded with 8.2 billion yen in digital money.