Michiko & Hatchin
The Daredevil Explosive Runner (1x14)
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Satoshi hires assassins to kill Michiko, Atsuko, and Shinsuke. When Shinsuke's assassin, Jair, spots Michiko first, he decides to pursue her, instead. Jair decides to challenge Michiko to a contest, to see which one of them can kill the other first.