Kikuno Kei attends a vocational school as a student. For her part-time job, she works as a contract killer. She is excellent at her job and never gets scared by anyone. One day, she receives the most challenging request. Adapted from the manga "Violence Action" (バイオレンスアクション) by Asai Renji (浅井蓮次) and Sawada Shin (沢田新).