Cannon Fodder in an Old Cultivation Novel

Jiang Zao dreams of mastering the sword and reaching immortal heights—until she joins Wenjian Peak and discovers her new family is utterly unhinged. Her master picks fights then pays reparations. Her senior sister speaks only in cryptic riddles. Her second senior brother hides world-shaking power behind crippling social anxiety. As the sole voice of reason in this chaotic household, Jiang Zao must navigate a cultivation world that's far stranger than any ancient manual promised. Can a self-aware "cannon fodder" rewrite her destiny when the Great Dao itself seems indifferent?