After Rebirth, Everyone Will Have a System?

Ning Muan was reborn and awakened...... What? No system? Because the "system" he once thought had just screwed him to death. Now he's back to the day he graduated from college and the day the subsequent series of death games began. I thought that even without the help of the "system", I could speedrun all the way with my memory, but why are your operations different from what I remember? "Is this going too fast?" "Am I not a reborn person? Who changed my script?" "Fuck! How can you fly?" … "Am I reborn? Or have I traveled through time?"