What are the necessary conditions for an ordinary human to become a time travel ambassador? The answer is, system!
Qing Moyan was hit by an unknown object when he went out to play. When he returned home and woke up, he found that there was an extra ball in his head.
The ball told her that as two hosts in a symbiotic relationship, as long as you can help it improve its level, it can realize your dreams and play in any world you want.
Intention: Strong self-fantasy