My Empress Mentor Is Acting Strange, Like a Yandere

I transmigrated as a demonic sect spy and was sent to the Sacred Sect to serve as a cultivation furnace. They were going to check my identity from the start! Thankfully, the [Divine-Level Push-and-Pull System] activated, letting me pose as an “innocent savage” and fool everyone. My master is a cold, stunning female emperor in the Nirvana Realm. Everyone respects and fears her. But I discovered that as long as I interact with her and make her blush, fall for me, or get jealous, I can grow stronger without limit! So, using my “savage” identity as cover, I kept pushing her buttons. Years later, during the war between the righteous and demonic factions, I was gravely wounded protecting her. When I woke, I found myself inside a lavish cage, my hands and feet bound by a formation. My lofty female emperor of a master leaned close, her eyes red and her voice trembling as she whispered in my ear: “Feng’er, where else do you think you’re going to run off to, leaving your master behind? If you run again, I’ll have no choice but to turn you into a puppet who can never leave me…” That was when I realized my aloof master seemed to have become… a yandere, thanks to me.