Candy and Cigarettes Vol. 4 (manga)

He sends her to kill Don Falcone, the narcotics king of Naples. But more awaits Miharu in sunny Naples than just horrific gangland violence. She also finds a mysterious young assassin...

One who knows her better than she knows herself. Series Overview: When retired cop Hiraga Raizou gets a lucrative gig working for a shadowy government organization known as the SS Agency, he is in for a rude awakening. The first day on his new job, he comes across a grisly murder and a lone little girl who's far from innocent.

She's Suzukaze Miharu, an 11-year-old master assassin-and his new partner! The arrangement is simple: she kills, he cleans up and hides any evidence. Sure, the pay is great, but how much blood is Raizou willing to get on his hands?