Everyone's a Psycho, and My Junior Sister Is Busy Courting Death

[Comedy + Absurdity + Transmigrate into a Book + Unhinged] I transmigrated into the role of a cannon-fodder junior sister who wouldn’t survive past the first chapter, and from the start, the unhinged senior brother Jun Wuxie is about to purge me from the sect. At the brink of despair, I bind myself to the [Absurd Lifesaving System]. As long as I make the villains’ emotions fluctuate, I can stay alive and earn rewards! So I nervously tell a terrible joke, and Senior Brother’s sword stops just before killing me. I recite a cheesy pickup line through my tears, and the icy second senior brother blushes. I pull out a brick and belt out a song, and the whole villainous sect goes out of character! I get so many pills and magical treasures that I somehow become the villainous sect’s darling. But can someone tell me why Senior Brother’s gaze is getting stranger and stranger? He corners me against the wall and says in a husky voice, “Junior Sister, you haven’t told me a joke today.”