Senior Sister Has a Snake Tail (Transmigration into a Book)

'''[A bit messy, proceed with caution] Wu Mei transmigrated into a book, becoming the cannon-fodder junior sister with the same name in a cultivation novel. Due to jealousy of the senior sister's peerless elegance, she defected from the immortal realm to pledge allegiance to the demon lord, only to be pierced through the heart by the extraordinarily talented protagonist senior sister in the end. On the first day of realizing she had transmigrated, Wu Mei scrambled away as fast as she could from the sword peak and her senior sister. Well-versed in the tropes of transmigration novels, Wu Mei declared that clinging to the protagonist's coattails was all fake; only by staying a minor side ch...