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With a new and unexpected White Dragon companion who was supposedly the last God of this world (Wow!) I learned a bunch of things. First of all, the System I have is named Soul book and it's a unique phenomenon of this world that changes a person's soul instantly, giving them a system-like power to develop skills and stats. I also learned about something called "the bridge of the cosmos" or something, made by the Ancient Gods of this world. Who all died for some reason…? I don't know why but some of them are being reanimated by the Vile Miasma or something, which is controlling their bodies. That's pretty terrible and sad, but that's kind of how life is.
Check "The Protagonist's Sister Is Actually the Strongest"!