How to open the door of chaos?

The gate of chaos is in the upper right corner of the big map. When the player reaches level 40, the gate of chaos will open, but you need to reach level 50 to enter the interception heaven!

There must be a Tian Tong token, and the method of obtaining a Tian Tong token is very troublesome. Let's see how to get a Tian Tong token:

Tian Tong token synthesis formula: Tian Tong token fragment 1+ Tian Tong token fragment 2+ Tian Tong token fragment 3.