月刊アフタヌーン
is a Japanese manga series written and illustrated by Kenichi Sonoda. It was published in Kodansha's "seinen" manga magazine "Monthly Afternoon" from 1991 to 1997 and was followed between 2004 and 2008 by a sequel series Gunsmith Cats Burst which included the same characters and situations. The series describes the adventures of young women fighting crime in Chicago.