Counterattack System appeared when I’m already At The Mahayana Realm

My name is Jiang Li, and upon traversing to this realm, I found no golden opportunities waiting for me. (𝕄𝕋𝕃ℕ𝔸𝕋𝕀𝕆ℕ𝕊.CʘM) Through sheer effort, I cultivated my way up to the Great Completion Stage. (𝕄𝕋𝕃ℕ𝔸𝕋𝕀𝕆ℕ𝕊.CʘM) Now, suddenly, a system appears, claiming it can help me turn the tables and transform me from a minor Qi Cultivation phase practitioner into the foremost figure in the cultivation world.

Dear system, you’re a bit late to the party. (𝕄𝕋𝕃ℕ𝔸𝕋𝕀𝕆ℕ𝕊.CʘM) I, Jiang Li, already stand as the Emperor of our era, revered across the nine provinces. (𝕄𝕋𝕃ℕ𝔸𝕋𝕀𝕆ℕ𝕊.CʘM) I am already the number one in the Cultivation World.