《杀人俏娇娃》讲述的是主人公夏目玲饰演的Sheriru，她是一名在裏社会中生存的专业保镖。某天，她接到了一个任务，要保护一名被称为「Fukurō」的传奇杀手追杀的男性。然而，在一次意外中，Sheriru错过了击败敌人的机会，导致Fukurō对她展开了顽强的追击，不断杀害她的工作伙伴。为了保护委托人并逃脱困境，Sheriru必须与敌人展开最后激烈的战斗，而在这过程中她的过去以及与Fukurō间的谜团也逐渐浮出水面

Sheriru并非寻常的女子，她具备出色的格斗技巧和洞察力，这使得她在保护委托人时显得游刃有余。然而，Fukurō的出现打破了平静的生活，将她卷入了一个又一个的危险境地。逐渐的，Sheriru发现自己和Fukurō之间似乎有着某种特殊的联系，这使得她对这个任务更加疑惑。

在追查Fukurō的过程中，Sheriru开始回忆起自己的过去。原来，她曾经是一名出色的杀手，但某个特殊的事件让她决定退出这一行业，选择了一种不同的生活方式。然而，过去的阴影似乎再次找上了她，让她不得不重新面对曾经的自己。

"Killer Pretty Girl" tells the story of Sheriru, played by the protagonist Xia Muling, who is a professional bodyguard living in the local society. One day, she received a mission to protect a man who was hunted down by a legendary killer called "Fukurō". However, in an accident, Sheriru missed the opportunity to defeat the enemy, causing Fukurō to launch a tenacious pursuit of her, constantly killing her work partner. In order to protect the client and escape the predicament, Sheriru must wage a final fierce battle with the enemy, and in the process, the mystery of her past and Fukurō gradually surfaced

Sheriru is not an ordinary woman, she has excellent fighting skills and insight, which makes her appear to be able to protect her client with ease. However, the appearance of Fukurō broke her peaceful life and involved her in one dangerous situation after another. Gradually, Sheriru found that there seemed to be a special connection between herself and Fukurō, which made her even more confused about this mission.

In the process of tracking down Fukurō, Sheriru began to recall her past. It turned out that she used to be an excellent killer, but a special event made her decide to quit this industry and choose a different way of life. However, the shadow of the past seemed to find her again, forcing her to face her former self again.