The Time Traveler Turned Out to Be My Golden Finger

[No heroine + golden finger + Gou Dao flow + farm flow + golden finger melee] Squeezed out at the start? I have the little green bottle! What? Little Green Bottle and Grandpa? What? Grandpa is also a time traveler? What Zhang Mu didn't expect was that he was not the only one to have the golden finger, [Exercise Synthesizer], [Corucopia], [Book of Hundreds of Worlds]...