Mom! It's Really None of My Business That My Sister Has Become a Yandere!

[Yandere girl + Bai Qiehei + Shura field + try my best...] Xu An's adopted sister Xu Qinghuan is an out-and-out lunatic. There are candid photos all over the wall, "biological samples" hidden under the bed, and scissors ready to cut off all his love blossoms at any time. But what's even more terrible is that my father, who has criminal investigation intuition, suddenly returned to China and began to conduct a carpet investigation in this home. In order to cover up those shady "perverted peripherals" and the deteriorated relationship between the two, Xu An was forced to start an "accomplice game" with his sister under the eyes of his parents. During the day, they are model siblings in the eyes of their parents; At night, when the door lock fell, he was a prey who was cornered and had teeth marks on his neck. In order to escape, Xu An originally wanted to find a blind date with a high IQ as a shield. Unexpectedly, this seemingly well-educated female master of psychology, seeing Xu An being forced into a desperate situation by her sister, not only did not run away, but she locked the door excitedly: "Observing this rare morbid symbiotic relationship is my specialty. For the sake of science... Do you mind if I record it up close?" Looking at the two women with more dangerous looks in front of him, and the old detective father who was ready to break in at any time, Xu An was completely numb. Okay, at worst, we'll all go crazy together!