I have traveled through time, who am I afraid of?

Leng Rongyue, the daughter of the Marquis of Qinxing, was beautiful, but she was doomed to fail. When Leng Rongyue was six years old, her mother was killed by her scumbag father, her cousin's mistress, and her biased grandmother. Leng Rongyue, who was originally a legitimate daughter, endured and survived. At the Mid-Autumn Festival banquet, the emperor took advantage of the wine to write the imperial edict to grant marriage for his favorite youngest son, the super first-class prince Xiao Jingyu. Xiao Jingyu is the most beautiful man in the world, a disciple of Lingxu Zhenren, and a master of both civil and military affairs! The emperor made a mistake in the imperial edict. He only wrote the daughter of the Marquis's family, but forgot to write Leng Rongyue's name. As a result, the scumbag father, stepmother, and biased grandmother conspired again to marry Leng Rongyue, who was nearly thirty years old, from her stepmother's family as soon as possible...