Prehistoric: a Grand Gathering of Systems from All Realms

Zhang Chen was reborn as the Time Demon. He was originally invincible and was not ready to leave the mountain. However, this primitive world is poisonous. Except for those who are reborn through time-traveling and know the direction of the plot, they will take advantage of it early. There is also a sign-in system, and people are running around every day. Obtain the task system: Doing tasks by yourself every day is not enough, but you also publish tasks... Get the live broadcast system: I want to live stream the removal of Hongjun's arm. There are those who create a combat power list at the beginning... Zhang Chen said not to panic, our fists are the hardest... "Ding, the Ten Thousand Realms Tutor System is being bound..." Zhang Chen: "What?" ..................... This novel and its characters are purely fictitious. Any similarity is purely coincidental and should not be imitated.