Mom! My Little Sister's Turned Yandere, and I Swear It's Not My Fault!

[Yandere younger sister + Sweet on the outside, dark on the inside + Love triangle from hell + I'm doing my best...]

Xu An's adopted younger sister, Xu Qinghuan, is a complete lunatic.

A wall covered in candid photos, “biological samples” hidden under his bed, and scissors always at the ready to cut off every chance he has at romance.

But what's even more dangerous is that his father, a detective with an instinct for criminal investigations, suddenly returns home and starts searching the house from top to bottom.

To hide the “perverted memorabilia” they can't let anyone see, as well as the twisted relationship between them, Xu An is forced to start a “game of co-conspirators” with his sister right under their parents' noses.

By day, they're the model siblings, loving and respectful in their parents' eyes.

By night, the moment the door locks, he's prey with nowhere left to run, his neck covered in bite marks.

To get away, Xu An plans to use a highly intelligent blind date as a human shield.

But when this seemingly refined, well-mannered master's student in psychology sees Xu An cornered by his sister, she doesn't run. Instead, she excitedly locks the door behind her:

“Observing this rare pathological symbiotic relationship is my specialty. For the sake of science... would you mind if I documented it up close?”

With two women before him, each more dangerous-eyed than the last, and his veteran detective father ready to break down the door at any moment, Xu An is completely at a loss.

Fine. We might as well all go crazy together!