Pathologically Entangled: She Can't Escape the Mad Dog Brother!

[Mad Dog Brother × Reasonable and Kind Sister] [Forced Love] [Yandere] [Double C] [Growth Redemption] Only when he was nineteen years old did Pei Si realize that he was born for his sister. His heart, his body, everything about him belonged to her, and his blood would boil with her every smile. And Yu Hewei only realized when he was twenty-one that Pei Si was a mad dog! Her kindness that year caused her to fall into an abyss of eternal destruction! That seemingly innocent boy is actually a complete devil! She taught him many things, and this time she taught him what "love" is. Story line: Yu Hewei met a poor child when she was seventeen. She thought she saved him and took him out of the abyss, but in the end she found that she was only led by him step by step and fell into his abyss. When he suddenly locked himself up when he was nineteen, she realized that all this was just the beginning...