[Please read responsibly and don't spread this around]
"In this world ruled by women, men are slaves."
That is the first problem Fujimaru Ritsuka has to face.
The shipgirls Azuma and Graf Zeppelin, and the Heroic Spirits Europa and Miyamoto Musashi.
When he was cast into this world, only four people remained by Fujimaru Ritsuka's side, and they had to recover through "continuous mana replenishment."
Forming a guild, securing the right to survive, and building an independent future become the foremost goals of everyone from Chaldea.
"Do the women in this world seem to have no concept of having children?"
--
This book is also known as "Divine Lament."