How To Be A System (Dummy-Proof Edition)

A soul traveled from earth into a world where people with supernatural powers abound. Where those with luck could reach the peak of humanity and break through their mortal shell. Well, the thing above doesn't talk about me, because I exist as the cheat those kind of people used. Traveling through myriad worlds, meeting with many hosts, invading other worlds, and seeking the truth. Even if i merely exists as a consciousness unable to directly affect the world. Let me use the feat of my hosts as the thread and weave my own legend in this universe.  But first, lets exploit those hosts to help me collect more energies~ Important Tag: World Hopping, Non Human Main Character.  Our MC the system will never have human, humanoid body, or perhaps even any physical body at all.  POVs: first arc used Third POV through the host. Second arc and above will be using system's First POV with occasional Third POV for relevant side characters