Quick Transmutation: a Guide to Saving the Yandere Male Protagonist

I am a professional female partner in the Quick Wear Bureau, specializing in treating all kinds of dissatisfaction. Until one day, the heroine department collectively complained that the yandere male protagonists were too suffocating in love, and the system slapped them on the head: "Replace! Let the vicious female protagonists teach them how to behave!" So I became the new Bai Yueguang stand-in, gentle and considerate, and took the initiative to give the male protagonists freedom. Unexpectedly, on the first day, the original heroines were lying in front of the surveillance camera with red eyes: "Why did he cook for her? He always only gave me chains..." "He gave me warm water when she coughed? When I had a fever, he just said that we would die together!" When the yandere knelt down and begged me not to leave, the original heroines cried out from behind: "Give me back that crazy love brain!"