Transmigrator

A character whose conscious identity or soul has broken away from their original body to inhabit a completely new physical vessel—frequently across different timelines, worlds, or social classes.

The thrill of waking up in a new skin, a stranger in a strange land with the ghost of a past life. It's the dizzying disorientation of foreign biologies, unfamiliar social strata, and the desperate scramble to adapt and survive with only fragmented memories as a guide.