Mika Hino is a sharp-shooting investigator that belongs to the infamous "Gator Branch.” When an executive board member of a trading company is accused of being involved in a bribery, Mika is assigned to keep watch over him. A few nights later her target is found dead outside of his 30 floor office building. With an apparent suicide note as evidence, local police conclude the case as a suicide. Mika’s assignment may have ended in failure, but her mission has just begun...

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