This is Screwed Up, but I Was Reincarnated as a GIRL in Another World!

Ren, a young orphan girl, has been sold off to a merchant with sinister plans for her. Suddenly, memories of her past life on a world called Earth come flooding back, and Ren remembers that she used to be a research scientist–and a grown man! As Ren escapes into the Dark Forest, magical powers awake