剧情设置正在现代巴黎，中法混血的Marinette Dupain-Cheng（玛丽内特·杜仄-程）是一个一般的中教女死，性情有些犹豫羞涩，梦念成为时拆设想师，暗恋同班的帅气男死Adrien Agreste（阿德里安·阿格里斯特）。当有坏人要挟巴黎时，Marinette化身正义英怯的英雄Ladybug（瓢虫），同陪爱调戏人的Chat Noir（乌猫），一同袭击罪恶势力。但Marinette并没有知晓里具下的Chat Noir正是她一直没有敢表明的男死Adrien，而Adrien也没有知晓自身的暗恋工具Ladybug却是Marinette。　　Set in modern-day Paris, the series focuses on a teenage junior high school girl named Marinette Dupain-Cheng and her classmate and crush Adrien Agreste. When evil arises, Marinette becomes a superhero named Ladybug, while Adrien becomes Chat NoirCat Noir. Not knowing each other's true identity, the two work together to protect Paris from a villain named Hawk Moth who covets their powers.