The dead girl is bound to a mysterious system.
From then on, he wandered around the world to help fulfill his wishes.
Sometimes they are powerful, sometimes they are powerful in martial arts, and sometimes they are not even human.
Either success or failure...
System: In the mission world, you cannot take the initiative to reveal the identity of your mission owner, nor can you change the original owner's usual behavior without any reason.
Sun Xiaoxiao: What benefits do I have?
System: alive
Sun Xiaoxiao:... Deal
Concept: A girl's journey through various worlds