Hearing Yang Zhen's words, Hua Youyue looked at Yang Zhen, her face pale, and her body trembling. Medicine Elder's complexion also turned pale, hastily supporting Hua Youyue.
Once this oath was uttered, the outcome was irreversible. Otherwise, Yang Zhen would undoubtedly suffer the backlash of his heart demon and would experience unbearable pain for the rest of his life.
The Scoundrel Cat, not knowing when, had crawled up onto the roof. Hearing these words, it quivered, looked up, and mumbled to itself, "This doesn't seem right. Such a malicious and ruthless oath to heart demons... should provoke a violet sky astronomical phenomenon..."
Mumbling this, the Scoundrel Cat's eyes suddenly widened. "Damn it, is this kid playing tricks?"
Yang Zhen anxiously glanced mid-air, and sighed in relief with a smirk.