Run! He Is Not a Good Brother

[System+yandere+dog training+extreme pulling+next year] Shen Cichu is bound to the vicious female supporting system, and her task is to collect the blackening value of the male protagonist Song Xianchen. But a bug breaks out in the system, and all sadistic tasks must be done in reverse! System: "Isolate him for three days" Shen Cichu backhandedly locked the boy who 'hated' her into the bedroom and monitored him 24 hours a day. System: "Destroy the thing he cherishes most" Shen Cichu repaired his mother's belongings, but carved the words "I like you" on it to disgust him. Finally, the system said: "Take off the male protagonist's pants and step on him to humiliate him." Shen Cichu:? ? ? Wait, isn't this right? Song Xianchen's blackening level soared, and she was satisfied with her escape and escaped back to her original world. Until five years later. She changed her identity and returned to the hero. But I heard the system announce the ultimate mission: [Raise the male protagonist's favorability to 100%, and make him voluntarily sacrifice himself, so that you can go home! Shen Cichu sneered: [He just wants to strangle me to death now. The system added in a low voice: [No, he just wants to kill you. She didn't hear clearly: [? ? ? Everyone rushed to answer: "I know, this question is ()!" - The once thin and tolerant boy has grown into a powerful and paranoid overlord. "Baby, don't you like it?" He bit her lip, his voice filled with shuddering morbidity and madness: "It was you who turned me into this with your own hands... I will go crazy if I leave you."