This Is Screwed Up, but I Was Reincarnated as a GIRL in Another World! (Manga) Vol. 15

In this isekai tale, a male scientist from Earth is reborn as an orphan girl in a world of swords and sorcery.

Ren is a young girl in a primitive world of magic and brutality. Sold as a slave and about to be delivered to an unscrupulous merchant, she suddenly awakens to vivid memories of a past life: a world called Earth, where Ren was both a grown man and a research scientist. Now, she must learn to survive, combining her knowledge of science from her past life with her talent in magic from this life.

Auteur
Ashi is a Japanese writer best known for I Don't Really Get It, but It Looks Like I Was Reincarnated in Another World.

Keyaki Uchiuchi is a Japanese manga artist best known for Basket no Megami-sama and the manga versions of I Don't Really Get It, but It Looks Like I Was Reincarnated in Another World and Failure Frame: I Became the Strongest and Annihilated Everything With Low-Level Spells.

Kaomin is a Japanese artist best known for the illustrations in the light novel version of I Don't Really Get It, but It Looks Like I Was Reincarnated in Another World.