The Villain’s Cultivation System Is Truly Crooked to Be No Good summary: Xia Xia, a modern scientist, was abandoned after being used by a scumbag ex-boyfriend, and unexpectedly crossed into the biggest antagonist in the world of mystery novels. Fǎnpài De Yǎng Chéng Xì Zhēnshi Wāi Dé Bùxíng, The Villain’s Cultivation System Is Truly Crooked to Be No Good, 反派的养成系真是歪得不行