Mato Seihei no Slave

The demon-filled dimension known as "Mato" has opened to threaten humanity, and a type of "peach" tree that grows there yields fruit that confers special powers to those who eat it, giving humanity a fighting chance, but this only works for women. As such, as protectors of humanity, women rise in social status while men are relegated to second-class citizens scraping for basic occupation and acknowledgment.