Fantasy Formation Magician

A space magician wants to use the teleportation array to teleport to the divine world. However, something unexpected happened during the transmission. Wait until he wakes up. I was shocked to find that I had become a child. Can he find the mystery of accidental teleportation in this world? [Some people died, but he died in the past? [Some people are missing, but he appears in the future? What's going on?