Wisher Beware by Snusmumriken

In a world where women rule, wereanimals are/have magical power, our MC is an farm slave and find some alien technology that gives him memories/knowledge and a way to evolve his body as well.
Then starts the journey to power so that he can survive(Slow to evolve his body but uses his knowledge). Slave's are common on this world, to the point that slaves have slaves. So he is sold to an household that has some power over a city and the plot start to unravel, he learns noble's etiquette, creates machines and tools to create more machines and tools, do chemistry, teach mathematics (that actually has a lot to do with magic).
We have romance here as well, it's not good, I fell that the author could do better. There's sex, not a lot, but long scenes (TBH I skipped a lot of those bc was hooked on the plot).
We have a lot of political intrigue. MC has a past, he cares about something, but we know nothing about (really difficult to have some empathy to his family this way).
Magic equals power, but MC seems to be a normal human, and we don't have magic.

Until now was an enjoyable read.