Prehistoric: Reborn to Reach Heaven, Prove the Tao with Strength

[Rebirth + Unforgiveness + System + No Heroine] Leader Tongtian was reborn from the era after the Conferring God War and awakened a sign-in system. As long as you sign in, you can get all kinds of outrageous rewards. The complete essence of opening the sky, Pangu's cultivation insights, the seeds of the avenue of power, the God-killing spear, the chaos beads... This time, I, Tongtian, will prove the Tao with my strength. Whoever blocks my way, I will kill with my sword!