Jiuxianzhi

The galaxy stands on the brink of collapse. Beyond the borders of the Stellar Empire, monstrous Void Beasts spread corruption across the stars, driving even the strongest Sentinels into madness. Only Guides possess the power to stabilize them, making every Guide a priceless asset. The stronger the Guide Core, the greater their status. After dying during Earth's zombie apocalypse, elite commander Lyrina Ashbourne awakens inside the body of Lady Merianah Emperion, the only daughter of one of the Empire's most prestigious ducal families. Her father is the empire's youngest grand duke. Her mother is the most celebrated SSS-Class Guide in history. Her three elder brothers are undefeated Sentinel generals whose names strike fear across the galaxy. Only Merianah is considered a disgrace. Born with an F-Class Guide Core, she is mocked by the nobility, ignored by her own family, and publicly abandoned by her childhood fiance, the Empire's most gifted Sentinel, during the Imperial Sentinel & Guide Academy's entrance ceremony. But while everyone celebrates her humiliation... The soul inside her has already changed. Memories from a lifetime of surviving humanity's final apocalypse awaken a mysterious evolution with her Guide Core. Overnight, the weakest noble daughter becomes the first person in recorded history to possess an SSS+ Guide Core. Ancient relics respond to her touch. Unstable Sentinels instinctively seek her presence. Even legendary Void Beasts hesitate before her. As political conspiracies, interstellar wars, and long-buried secrets surrounding the origin of Guides come to light, Merianah realizes her extraordinary power is no blessing. It is the key to an ancient force capable of either saving the galaxy or destroying it. Now, the family that once dismissed her wants her back. The fiance who rejected her regrets everything. And the most powerful Sentinels across the Empire are determined to become her partner. This time, the Duke's "worthless" daughter will decide who is worthy of standing beside her.