System World is full of systems that manipulate over 1 million worlds. Each system has its own host who completes the missions being signed in different worlds.
Each system has a ranking and the highest is 001 down to the lowest. The higher the rank of the system the more hosts it will hold.
The mission man is the lives of the inhabitants of different planets that need to be changed where the host will enter that body and finish the mission with the help of the system. The mission also has a rank where when the rank is higher it is harder. The rank starts from the lowest rank to the highest: F, E, D, C, B, A, and S.
The hosts in turn are the various creatures on different planets that have died that the system has chosen to host.
Meet system 001, the system that is foolproof and proud of itself because of its over 1000 hosts even one of them is flawless and has a 100% winrate.
In an unexpected turn of events, the proud system 001 goes to the Magical World and becomes the waste prince of an exiled kingdom. He cannot accept this embarrassment fortunately and there is a system that helps him secretly.
Read how he grew stronger, changed the world, and discovered the secret that has yet to be revealed.