Fantasy: Invincible After Signing into the Innate Holy Body

[Single female protagonist + pure love + invincibility + mildly yandere female protagonist + system + exciting flow + sign-in flow + hot blood] Because of an encounter with a large truck, Jiang Xianyu accidentally traveled to a fantasy world and became the divine son of an ancient family. With an invincible background, amazing talents, and a sign-in system, you can sign in to the innate holy body at the beginning! In this life, Jiang Xianyu will definitely reach the top, climb to the top of the Nine Heavens Immortal Realm, and overlook the endless eternity! Suddenly, Jiang Xianyu felt a chill running down her spine. When she looked back, she found that the slightly yandere ancestor and wife of the Jiang family was staring at her lovingly...